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                    <title><![CDATA[ Latest from Live Science in Elements ]]></title>
                <link>https://www.livescience.com/tag/elements</link>
        <description><![CDATA[ All the latest elements content from the Live Science team ]]></description>
                                    <lastBuildDate>Wed, 15 Oct 2025 10:01:22 +0000</lastBuildDate>
                            <language>en</language>
                                <item>
                                                            <title><![CDATA[ We were wrong about how the moon's largest and oldest crater formed — and that's great news for NASA's next lunar landing ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/space/the-moon/we-were-wrong-about-how-the-moons-largest-and-oldest-crater-formed-and-thats-great-news-for-nasas-next-lunar-landing</link>
                                                                            <description>
                            <![CDATA[ A new study has revealed that our understanding of the South Pole-Aitken basin was quite literally back-to-front, meaning astronauts on NASA's future Artemis III mission may be able to collect valuable samples of ancient radioactive material, known as KREEP. ]]>
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                                                                        <pubDate>Wed, 15 Oct 2025 10:01:22 +0000</pubDate>                                                                                                                                <updated>Thu, 16 Oct 2025 09:54:18 +0000</updated>
                                                                                                                                            <category><![CDATA[The Moon]]></category>
                                                    <category><![CDATA[Space]]></category>
                                                    <category><![CDATA[Astronomy]]></category>
                                                                                                                    <dc:creator><![CDATA[ Harry Baker ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/eH37NMxsyjKvMfoXuZhFUo-1280-80.jpg">
                                                            <media:credit><![CDATA[Jeff Andrews-Hanna/University of Arizona/NASA/NAOJ]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[A new study has revealed that the asteroid that birthed the South Pole-Aitkin basin (blue) unleashed radioactive lunar material, known as KREEP (red), that surrounds the crater&#039;s southwestern rim.]]></media:description>                                                            <media:text><![CDATA[An artist&#039;s illustration of the moon showing a large layer of KREEP surrounding the South Pole-Aitken basin]]></media:text>
                                <media:title type="plain"><![CDATA[An artist&#039;s illustration of the moon showing a large layer of KREEP surrounding the South Pole-Aitken basin]]></media:title>
                                                    </media:content>
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                                                            <title><![CDATA[ What are the 'magic numbers' in nuclear physics, and why are they so powerful? ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/physics-mathematics/particle-physics/what-are-the-magic-numbers-in-nuclear-physics-and-why-are-they-so-powerful</link>
                                                                            <description>
                            <![CDATA[ Why do some elements decay in minutes, while others last billions of years? Certain "magic numbers" of nuclear particles may make all the difference. ]]>
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                                                                        <pubDate>Wed, 17 Sep 2025 20:33:22 +0000</pubDate>                                                                                                                                <updated>Thu, 18 Sep 2025 15:43:48 +0000</updated>
                                                                                                                                            <category><![CDATA[Particle Physics]]></category>
                                                    <category><![CDATA[Physics &amp; Mathematics]]></category>
                                                                                                                    <dc:creator><![CDATA[ Victoria Atkinson ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/Ai3TjZYDLu3t2NC3SR5zZd-1280-80.jpg">
                                                            <media:credit><![CDATA[aire images via Getty Images]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[An abstract illustration of a radioactive atom losing particles. In nature, some atoms are inherently more stable than others, thanks to certain &quot;magic numbers&quot; of nuclear particles.]]></media:description>                                                            <media:text><![CDATA[An illustration of small particles gathered together in an orb]]></media:text>
                                <media:title type="plain"><![CDATA[An illustration of small particles gathered together in an orb]]></media:title>
                                                    </media:content>
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                                                            <title><![CDATA[ Can other metals be turned into gold? ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/chemistry/can-other-metals-be-turned-into-gold</link>
                                                                            <description>
                            <![CDATA[ Other metals might be worth their weight in gold, but can they be turned into it? ]]>
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                                                                        <pubDate>Mon, 21 Jul 2025 09:00:00 +0000</pubDate>                                                                                                                                                                                                                                <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Victoria Atkinson ]]></dc:creator>                                                                                                    <media:content type="image/png" url="https://cdn.mos.cms.futurecdn.net/dMnDS8mQfpxpFsoXm4myZn-1280-80.png">
                                                            <media:credit><![CDATA[OsakaWayne Studios/Getty Images]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[All that glitters is not gold, but can other elements be turned into this precious metal?]]></media:description>                                                            <media:text><![CDATA[3D illustration of two gold bars laying on regular stacked layer of 1kg 999,9 fine gold bar ingots.]]></media:text>
                                <media:title type="plain"><![CDATA[3D illustration of two gold bars laying on regular stacked layer of 1kg 999,9 fine gold bar ingots.]]></media:title>
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                                                            <title><![CDATA[ Oldest gold in the universe may finally have an explanation: 'It's answering one of the questions of the century' ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/space/astronomy/its-answering-one-of-the-questions-of-the-century-scientists-may-finally-know-where-the-oldest-gold-in-the-universe-came-from</link>
                                                                            <description>
                            <![CDATA[ Dead stars may have started churning out vast amounts of gold much earlier in the universe than previously thought, a new study hints. Powerful magnetar flares may be the reason. ]]>
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                                                                        <pubDate>Wed, 30 Apr 2025 17:49:39 +0000</pubDate>                                                                                                                                <updated>Thu, 01 May 2025 15:09:00 +0000</updated>
                                                                                                                                            <category><![CDATA[Astronomy]]></category>
                                                    <category><![CDATA[Space]]></category>
                                                                                                <author><![CDATA[ sascha.pare@futurenet.com (Sascha Pare) ]]></author>                    <dc:creator><![CDATA[ Sascha Pare ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/W7sGp337kGTw88aM29X9mB-1280-80.jpg">
                                                            <media:credit><![CDATA[NASA/JPL-Caltech]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[An illustration of a magnetar erupting with energy, possibly forging heavy elements. ]]></media:description>                                                            <media:text><![CDATA[An illustration of a magnetar]]></media:text>
                                <media:title type="plain"><![CDATA[An illustration of a magnetar]]></media:title>
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                                                            <title><![CDATA[ Secrets of radioactive 'promethium' — a rare earth element with mysterious applications — uncovered after 80-year search ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/chemistry/secrets-of-radioactive-promethium-a-rare-earth-element-with-mysterious-applications-uncovered-after-80-year-search</link>
                                                                            <description>
                            <![CDATA[ Scientists have revealed key properties of radioactive promethium, a rare earth element with poorly understood applications, using a groundbreaking new method. ]]>
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                                                                        <pubDate>Wed, 29 May 2024 09:00:00 +0000</pubDate>                                                                                                                                <updated>Tue, 25 Mar 2025 17:05:33 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Victoria Atkinson ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/gCozwzAmp893A8FNaBAs2J-1280-80.jpg">
                                                            <media:credit><![CDATA[Jacquelyn DeMink, art; Thomas Dyke, photography; ORNL, U.S. Dept. of Energy]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Conceptual art showing the rare earth element promethium in a vial surrounded by an organic ligand. ORNL scientists have discovered hidden features of promethium, opening a pathway for research into other lanthanide elements. ]]></media:description>                                                            <media:text><![CDATA[An artist&#039;s rendering of a microscopic view of the promethium element]]></media:text>
                                <media:title type="plain"><![CDATA[An artist&#039;s rendering of a microscopic view of the promethium element]]></media:title>
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                                                            <title><![CDATA[ Bismuth is so strongly repelled from magnets, it levitates. How? ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/chemistry/bismuth-is-so-strongly-repelled-from-magnets-it-levitates-how</link>
                                                                            <description>
                            <![CDATA[ The element bismuth can "float" between magnets due to magnetic levitation. What's the science behind this phenomenon? ]]>
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                                                                        <pubDate>Sat, 23 Mar 2024 09:00:39 +0000</pubDate>                                                                                                                                <updated>Tue, 25 Mar 2025 17:04:46 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Victoria Atkinson ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/QNVKiagc7eneRBqZpwfNgN-1280-80.jpg">
                                                            <media:credit><![CDATA[ProteanVisuals via Getty Images]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Bismuth is an iridescent metal that can seemingly float between two magnets, a phenomenon known as &quot;magnetic levitation.&quot;]]></media:description>                                                            <media:text><![CDATA[Mineral bismuth close-up, full size image above 4K.]]></media:text>
                                <media:title type="plain"><![CDATA[Mineral bismuth close-up, full size image above 4K.]]></media:title>
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                                                            <title><![CDATA[ 'Barbenheimer Star' that blew up 13 billion years ago defies explanation, baffling scientists ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/space/astronomy/barbenheimer-star-that-blew-up-13-billion-years-ago-defies-explanation-baffling-scientists</link>
                                                                            <description>
                            <![CDATA[ The inexplicable entity, which likely had a chemical composition unlike any other known star, was identified by a group of "stellar archaeologists" who traced back the cosmic history of another equally unique star. ]]>
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                                                                        <pubDate>Fri, 19 Jan 2024 15:12:35 +0000</pubDate>                                                                                                                                <updated>Tue, 25 Mar 2025 17:04:00 +0000</updated>
                                                                                                                                            <category><![CDATA[Astronomy]]></category>
                                                    <category><![CDATA[Space]]></category>
                                                                                                                    <dc:creator><![CDATA[ Harry Baker ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/8QP6p7wyh3G3mRDRYpAaB7-1280-80.jpg">
                                                            <media:credit><![CDATA[University of Chicago/SDSS-V/Melissa Weiss]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[The newly discovered Barbenheimer Star exploded in a supernova billions of years ago,leaving behind a cloud of unusual elements in its wake.]]></media:description>                                                            <media:text><![CDATA[An artist&#039;s interpretation of a supernova with element symbols]]></media:text>
                                <media:title type="plain"><![CDATA[An artist&#039;s interpretation of a supernova with element symbols]]></media:title>
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                                                            <title><![CDATA[ Only 1% of chemicals in the universe have been discovered. Here's how scientists are hunting for the rest. ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/chemistry/only-1-of-chemicals-in-the-universe-have-been-discovered-heres-how-scientists-are-hunting-for-the-rest</link>
                                                                            <description>
                            <![CDATA[ Most chemical compouds are still unknown to science. How many new ones can we make by combining elements from the periodic table? ]]>
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                                                                        <pubDate>Wed, 18 Oct 2023 18:11:11 +0000</pubDate>                                                                                                                                <updated>Thu, 08 May 2025 11:19:02 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Matthew Addicoat ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/PySXgDQ5SZtzZHoib2GXL5-1280-80.jpg">
                                                            <media:credit><![CDATA[Garsya/Shutterstock]]></media:credit>
                                                                                                                                                                                                                                    <media:description><![CDATA[Chemistry beaker with green liquid atop chemical notes.]]></media:description>                                                            <media:text><![CDATA[Chemistry beaker with green liquid atop chemical notes.]]></media:text>
                                <media:title type="plain"><![CDATA[Chemistry beaker with green liquid atop chemical notes.]]></media:title>
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                                                            <title><![CDATA[ 'Once again, innovation and proliferation ended with catastrophe': The environmental disaster of plants taking over the world ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/planet-earth/plants/once-again-innovation-and-proliferation-ended-with-catastrophe-the-environmental-disaster-of-plants-taking-over-the-world</link>
                                                                            <description>
                            <![CDATA[ The evolutionary leap that allowed plants to live on land 400 million years ago upended Earth in a way unseen since the Great Oxidation Event over 1.5 billion years earlier. ]]>
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                                                                        <pubDate>Tue, 12 Sep 2023 16:18:00 +0000</pubDate>                                                                                                                                <updated>Tue, 25 Mar 2025 17:02:32 +0000</updated>
                                                                                                                                            <category><![CDATA[Plants]]></category>
                                                    <category><![CDATA[Planet Earth]]></category>
                                                                                                                    <dc:creator><![CDATA[ Stephen Porder ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/RkjTYyk9XtNWFkKQXPRpQh-1280-80.jpg">
                                                            <media:credit><![CDATA[Kriswanto Ginting/Getty Images]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[How plants left the ocean and colonized the early continents — and the catastrophic consequences of doing so.]]></media:description>                                                            <media:text><![CDATA[a tropical rainforest with tall trees and a gap in the canopy where the sun is coming through]]></media:text>
                                <media:title type="plain"><![CDATA[a tropical rainforest with tall trees and a gap in the canopy where the sun is coming through]]></media:title>
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                                                            <title><![CDATA[ James Webb telescope could detect life on Earth from across the galaxy, new study suggests ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/space/exoplanets/james-webb-telescope-could-detect-life-on-earth-from-across-the-galaxy-new-study-suggests</link>
                                                                            <description>
                            <![CDATA[ Researchers have shown that if the James Webb Space Telescope was pointed at Earth from a distant star, it could detect the signatures of intelligent life in our planet's atmosphere. ]]>
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                                                                        <pubDate>Mon, 11 Sep 2023 18:29:54 +0000</pubDate>                                                                                                                                <updated>Tue, 25 Mar 2025 17:02:32 +0000</updated>
                                                                                                                                            <category><![CDATA[Exoplanets]]></category>
                                                    <category><![CDATA[Space]]></category>
                                                    <category><![CDATA[Astronomy]]></category>
                                                    <category><![CDATA[Planets]]></category>
                                                                                                                    <dc:creator><![CDATA[ Harry Baker ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/ZiJAqQTXetp4qfM7YemRaA-1280-80.jpg">
                                                            <media:credit><![CDATA[Getty Images]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[A new study suggests that the James Webb Space Telescope could detect Earth&#039;s human civilization from across the galaxy]]></media:description>                                                            <media:text><![CDATA[James Webb Space Telescope in outer space.]]></media:text>
                                <media:title type="plain"><![CDATA[James Webb Space Telescope in outer space.]]></media:title>
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                                                            <title><![CDATA[ Scientists discover 1st 'neutron-rich' isotope of uranium since 1979 ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/chemistry/elements/scientists-discover-1st-neutron-rich-isotope-of-uranium-since-1979</link>
                                                                            <description>
                            <![CDATA[ Scientists have synthesized a previously unknown isotope of uranium, uranium-241, that may start to disappear after just 40 minutes. ]]>
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                                                                        <pubDate>Sat, 15 Apr 2023 14:00:19 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:37:31 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Robert Lea ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/rJpWHmKSCCdxTGEr6r2zbQ-1280-80.jpg">
                                                            <media:credit><![CDATA[RHJ via Getty Images]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[An example of uranium nitrate called uranyl with some uranium ore.]]></media:description>                                                            <media:text><![CDATA[Uranium nitrate called uranyl, with uranium ore, radioactive material on isolated white background_RHJ via Getty Images]]></media:text>
                                <media:title type="plain"><![CDATA[Uranium nitrate called uranyl, with uranium ore, radioactive material on isolated white background_RHJ via Getty Images]]></media:title>
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                                                            <title><![CDATA[ Francium: Facts about the elusive radioactive element ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39582-what-is-francium.html</link>
                                                                            <description>
                            <![CDATA[ Properties and sources of the element francium. ]]>
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                                                                        <pubDate>Tue, 26 Jul 2022 14:26:20 +0000</pubDate>                                                                                                                                <updated>Wed, 14 Jan 2026 10:50:27 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Joe Phelan ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/vgKjoxqFA3tJKPCBrKFZpj-1280-80.jpg">
                                                            <media:credit><![CDATA[shutterstock]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Francium is the 87th element on the periodic table]]></media:description>                                                            <media:text><![CDATA[Francium on the periodic table]]></media:text>
                                <media:title type="plain"><![CDATA[Francium on the periodic table]]></media:title>
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                                                            <title><![CDATA[ How does arsenic kill? ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/how-does-arsenic-kill</link>
                                                                            <description>
                            <![CDATA[ Arsenic is a naturally occurring element with properties similar to those found in phosphorus. It is also a deadly toxin that is difficult to detect. ]]>
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                                                                        <pubDate>Tue, 21 Jun 2022 09:00:00 +0000</pubDate>                                                                                                                                <updated>Tue, 25 Mar 2025 16:51:39 +0000</updated>
                                                                                                                                            <category><![CDATA[Health]]></category>
                                                                                                                    <dc:creator><![CDATA[ Charles Choi ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/v8bNsJsmmjvhn5svvreZKL-1280-80.jpg">
                                                            <media:credit><![CDATA[Andreas Kermann/Getty Images]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Pure arsenic is a steel-gray, brittle solid. It is typically found in the environment combined with other elements.]]></media:description>                                                            <media:text><![CDATA[Pure arsenic is a steel-gray, brittle solid. It is typically found in the environment combined with other elements.]]></media:text>
                                <media:title type="plain"><![CDATA[Pure arsenic is a steel-gray, brittle solid. It is typically found in the environment combined with other elements.]]></media:title>
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                                                            <title><![CDATA[ Colossal asteroid impact forever changed the balance of the moon ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/dark-side-moon-crater-imbalance</link>
                                                                            <description>
                            <![CDATA[ A new study has revealed that the imbalance of craters seen on the nearside and far side of the moon is the result of disruption to the moon's mantle caused by a massive collision around 4.3 billion years ago. ]]>
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                                                                        <pubDate>Tue, 12 Apr 2022 15:20:09 +0000</pubDate>                                                                                                                                <updated>Tue, 20 Jan 2026 13:39:53 +0000</updated>
                                                                                                                                            <category><![CDATA[Asteroids]]></category>
                                                    <category><![CDATA[Space]]></category>
                                                    <category><![CDATA[Astronomy]]></category>
                                                                                                                    <dc:creator><![CDATA[ Harry Baker ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/Prz4iZ4rsLWhgquLYoG36K-1280-80.jpg">
                                                            <media:credit><![CDATA[Shutterstock]]></media:credit>
                                                                                                                                                                                                                                    <media:description><![CDATA[The moon&#039;s far side is littered with many more craters than the nearside, which is visible from Earth.]]></media:description>                                                            <media:text><![CDATA[The moon&#039;s far side is littered with many more craters than the nearside, which is visible from Earth.]]></media:text>
                                <media:title type="plain"><![CDATA[The moon&#039;s far side is littered with many more craters than the nearside, which is visible from Earth.]]></media:title>
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                                                            <title><![CDATA[ What are the most common elements in the human body? ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/common-elements-in-human-body</link>
                                                                            <description>
                            <![CDATA[ Here are the top four (and a bonus fifth) elements that make up the human body. ]]>
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                                                                        <pubDate>Sat, 26 Mar 2022 11:00:01 +0000</pubDate>                                                                                                                                <updated>Tue, 25 Mar 2025 16:51:47 +0000</updated>
                                                                                                                                            <category><![CDATA[Health]]></category>
                                                                                                                    <dc:creator><![CDATA[ Donavyn Coffey ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/Ykh3hNpPMCYBxmnWoR7E6R-1280-80.jpg">
                                                            <media:credit><![CDATA[metamorworks via Getty Images]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[What are the elements that make up the majority of the human body?]]></media:description>                                                            <media:text><![CDATA[An illustration of a woman&#039;s face in profile. Her face is blue and she has a white light and lots of dots overing her face in an abstract way.]]></media:text>
                                <media:title type="plain"><![CDATA[An illustration of a woman&#039;s face in profile. Her face is blue and she has a white light and lots of dots overing her face in an abstract way.]]></media:title>
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                                                            <title><![CDATA[ Gold: Facts, history and uses of the most malleable chemical element ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39187-facts-about-gold.html</link>
                                                                            <description>
                            <![CDATA[ Here's a look at the chemical element gold, including its properties, atomic structure and history. ]]>
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                                                                        <pubDate>Thu, 03 Mar 2022 21:13:48 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 13:38:00 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Stephanie Pappas ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/gwavbWSqZFoTpZpdqMGQU6-1280-80.jpg">
                                                            <media:credit><![CDATA[Getty Images]]></media:credit>
                                                                                                                                                                                                                                    <media:description><![CDATA[A gold nugget ]]></media:description>                                                            <media:text><![CDATA[A gold nugget ]]></media:text>
                                <media:title type="plain"><![CDATA[A gold nugget ]]></media:title>
                                                    </media:content>
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                                                            <title><![CDATA[ How Many Chemical Elements Can You Name? 1 in 5 Americans Can't Name One. ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/65605-americans-clueless-periodic-table-elements.html</link>
                                                                            <description>
                            <![CDATA[ One in 5 Americans can't name a single element on the Periodic Table. ]]>
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                                                                        <pubDate>Fri, 31 May 2019 16:40:06 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 13:37:27 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Stephanie Pappas ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/xMGac8DRrQumAhcjfoVAAm-1280-80.jpg">
                                                            <media:credit><![CDATA[Shutterstock]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Name a chemical element off the top of your head. Go.]]></media:description>                                                            <media:text><![CDATA[Periodic table of elements]]></media:text>
                                <media:title type="plain"><![CDATA[Periodic table of elements]]></media:title>
                                                    </media:content>
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                                                            <title><![CDATA[ Scientists Think They've Found the Ancient Neutron Star Crash That Showered Our Solar System in Gold ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/65411-neutron-star-collision-rains-bling-on-solar-system.html</link>
                                                                            <description>
                            <![CDATA[ A nearby neutron star collision may have rained bling on our solar system when it was a baby. ]]>
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                                                                        <pubDate>Mon, 06 May 2019 13:12:21 +0000</pubDate>                                                                                                                                <updated>Tue, 20 Jan 2026 15:25:41 +0000</updated>
                                                                                                                                            <category><![CDATA[Astronomy]]></category>
                                                    <category><![CDATA[Space]]></category>
                                                                                                                    <dc:creator><![CDATA[ Brandon Specktor ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/h5RdCywM9GUdX7cX5GhjD6-1280-80.jpg">
                                                            <media:credit><![CDATA[NASA Goddard]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Two neutron stars rip each other apart to form a black hole in this NASA simulation. New research suggests that a stellar collision like this occurred very close to our solar system some 4.6 billion years ago, showering our cosmic neighborhood with many of the heavy elements crucial to life.]]></media:description>                                                            <media:text><![CDATA[neutron stars]]></media:text>
                                <media:title type="plain"><![CDATA[neutron stars]]></media:title>
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                                                            <title><![CDATA[ Is It Solid? Or Is It Liquid? New Kind of Matter Is Both. ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/65212-element-solid-and-liquid.html</link>
                                                                            <description>
                            <![CDATA[ Solid and liquid intertwine at the atomic level. ]]>
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                                                                        <pubDate>Thu, 11 Apr 2019 17:32:44 +0000</pubDate>                                                                                                                                <updated>Thu, 11 Sep 2025 14:24:41 +0000</updated>
                                                                                                                                            <category><![CDATA[Physics &amp; Mathematics]]></category>
                                                                                                                    <dc:creator><![CDATA[ Mindy Weisberger ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/rGpj2hRtqCgXyYZDdxLthA-1280-80.jpg">
                                                            <media:credit><![CDATA[iStock/Getty Images Plus]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Can something be a solid and a liquid at the same time? Certain elements can, new simulations show. ]]></media:description>                                                            <media:text><![CDATA[Melting clock]]></media:text>
                                <media:title type="plain"><![CDATA[Melting clock]]></media:title>
                                                    </media:content>
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                                                            <title><![CDATA[ Chemically, Earth Is Basically a Less Volatile Version of the Sun ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/65044-earth-is-sunlike.html</link>
                                                                            <description>
                            <![CDATA[ The elemental composition of Earth and sun are unexpectedly similar. ]]>
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                                                                        <pubDate>Thu, 21 Mar 2019 15:34:19 +0000</pubDate>                                                                                                                                <updated>Wed, 14 Jan 2026 10:42:53 +0000</updated>
                                                                                                                                            <category><![CDATA[The Sun]]></category>
                                                    <category><![CDATA[Space]]></category>
                                                    <category><![CDATA[Astronomy]]></category>
                                                                                                                    <dc:creator><![CDATA[ Mindy Weisberger ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/TfxH8tuRKDQT5PeqUHkxq5-1280-80.jpg">
                                                            <media:credit><![CDATA[NASA/SDO]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Materials that shaped a young Earth likely originated in the same protosolar nebula that birthed the sun.]]></media:description>                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/TfxH8tuRKDQT5PeqUHkxq5-1280-80.jpg" />
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                                                            <title><![CDATA[ Physicists Think They've Figured Out the Most Extreme Chemical Factories in the Universe ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/65041-supernovas-mystery-possibly-solved.html</link>
                                                                            <description>
                            <![CDATA[ Our world is full of chemicals that shouldn't exist. New research could explain why they exist anyway. ]]>
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                                                                        <pubDate>Thu, 21 Mar 2019 10:51:36 +0000</pubDate>                                                                                                                                <updated>Tue, 20 Jan 2026 13:58:55 +0000</updated>
                                                                                                                                            <category><![CDATA[Cosmology]]></category>
                                                    <category><![CDATA[Space]]></category>
                                                    <category><![CDATA[Astronomy]]></category>
                                                                                                                    <dc:creator><![CDATA[ Rafi Letzter ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/EKerbUcDMzzLd6DRwPr5vS-1280-80.jpeg">
                                                            <media:credit><![CDATA[NASA]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[This is a NASA illustration of a supernova.]]></media:description>                                                            <media:text><![CDATA[An illustration of a supernova]]></media:text>
                                <media:title type="plain"><![CDATA[An illustration of a supernova]]></media:title>
                                                    </media:content>
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                                                            <title><![CDATA[ Mendeleev's Periodic Table Draft Is Virtually Unrecognizable — But It Changed Science Forever ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/64793-periodic-table-draft-150th-anniversary.html</link>
                                                                            <description>
                            <![CDATA[ Back in 1869, the periodic table of elements had just 63 elements and was scribbled in ink. ]]>
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                                                                        <pubDate>Sun, 17 Feb 2019 13:09:14 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:08:20 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Brandon Specktor ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/gyLNb3K7WGPg6zPESi632Y-1280-80.jpg">
                                                            <media:credit><![CDATA[Science &amp; Society Picture Library/SSPL/Getty Images]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Mendeleev’s first periodic table of elements was released on Feb. 17, 1869.]]></media:description>                                                            <media:text><![CDATA[Mendeleev’s first periodic table of elements was released on Feb. 17, 1869.]]></media:text>
                                <media:title type="plain"><![CDATA[Mendeleev’s first periodic table of elements was released on Feb. 17, 1869.]]></media:title>
                                                    </media:content>
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                                                            <title><![CDATA[ World’s Oldest Periodic Table Poster Turns Up in Scottish Storeroom ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/64545-oldest-periodic-table-elements-poster.html</link>
                                                                            <description>
                            <![CDATA[ The world's oldest classroom poster of the periodic table of elements, dating to 1885, has turned up in Scotland. ]]>
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                                                                        <pubDate>Fri, 18 Jan 2019 19:52:27 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:18:00 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Brandon Specktor ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/HwQpAbZgTttpJqenTVs4WV-1280-80.jpg">
                                                            <media:credit><![CDATA[University of St. Andrews]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[This German periodic table classroom poster, dating to 1885, may be the oldest surviving in the world.]]></media:description>                                                            <media:text><![CDATA[periodic table, oldest periodic table]]></media:text>
                                <media:title type="plain"><![CDATA[periodic table, oldest periodic table]]></media:title>
                                                    </media:content>
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                                                            <title><![CDATA[ Polonium: A Rare and Highly Volatile Radioactive Element ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39452-polonium.html</link>
                                                                            <description>
                            <![CDATA[ Polonium was a critical ingredient in the first atomic bomb and it's a suspected poison in more than one high-profile death. ]]>
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                                                                        <pubDate>Thu, 06 Dec 2018 23:19:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:31:00 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Traci Pedersen ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/i8gpz3GxG8NSoRK3BBCaw6-1280-80.jpg">
                                                            <media:credit><![CDATA[Shutterstock]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Polonium is a radioactive element.]]></media:description>                                                            <media:text><![CDATA[Radioactive sign]]></media:text>
                                <media:title type="plain"><![CDATA[Radioactive sign]]></media:title>
                                                    </media:content>
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                                                            <title><![CDATA[ What Is Lithium? ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/28579-lithium.html</link>
                                                                            <description>
                            <![CDATA[ Lithium is a metal used in manufacturing, electronics and mental health. ]]>
                                                                                                            </description>
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                                                                        <pubDate>Tue, 23 Oct 2018 17:51:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 13:38:41 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Stephanie Pappas ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/4srw6tpZsj8fzFWbCqbmHm-1280-80.jpg">
                                                            <media:credit><![CDATA[AlexLMX | Shutterstock ]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Many electronic devices use batteries that contain lithium metal or lithium compounds.]]></media:description>                                                            <media:text><![CDATA[Lithium batteries]]></media:text>
                                <media:title type="plain"><![CDATA[Lithium batteries]]></media:title>
                                                    </media:content>
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                                                            <title><![CDATA[ Which IsRarer:GoldorDiamonds? ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/63451-which-is-rarer-gold-or-diamonds.html</link>
                                                                            <description>
                            <![CDATA[ Diamonds are forever, and gold is precious, but which is rarer? And does that rarity have anything to do with the price we see at a jewelry store? ]]>
                                                                                                            </description>
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                                                                        <pubDate>Tue, 28 Aug 2018 15:02:19 +0000</pubDate>                                                                                                                                <updated>Tue, 20 Jan 2026 14:59:02 +0000</updated>
                                                                                                                                            <category><![CDATA[Geology]]></category>
                                                    <category><![CDATA[Planet Earth]]></category>
                                                                                                                    <dc:creator><![CDATA[ Joanna Fantozzi ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/s6vqLuR5neMfqY5k89ALvR-1280-80.jpg">
                                                            <media:credit><![CDATA[Shutterstock]]></media:credit>
                                                                                                                                                                                                                                    <media:description><![CDATA[gold, diamonds]]></media:description>                                                            <media:text><![CDATA[gold, diamonds]]></media:text>
                                <media:title type="plain"><![CDATA[gold, diamonds]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/s6vqLuR5neMfqY5k89ALvR-1280-80.jpg" />
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                                                            <title><![CDATA[ Facts About Radon ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39546-radon.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element radon. ]]>
                                                                                                            </description>
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                                                                        <pubDate>Wed, 01 Aug 2018 02:10:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 11:54:40 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Traci Pedersen ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/xiBUdgXVtHoeJQXPtZBbBS-1280-80.jpg">
                                                            <media:credit><![CDATA[Andrei Marincas | Shutterstock]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Radon]]></media:description>                                                            <media:text><![CDATA[radon]]></media:text>
                                <media:title type="plain"><![CDATA[radon]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/xiBUdgXVtHoeJQXPtZBbBS-1280-80.jpg" />
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                                <item>
                                                            <title><![CDATA[ Facts About Californium ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/40272-facts-about-californium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element californium. ]]>
                                                                                                            </description>
                                                                                                                                <guid isPermaLink="false">juiULnR86mxh3HoVMmuPGg</guid>
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                                                                        <pubDate>Sun, 22 Apr 2018 02:25:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:18:08 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Traci Pedersen ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/arV3ggb99U2nV7tnACMRHF-1280-80.jpg">
                                                            <media:credit><![CDATA[U.S. Department of Energy]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[A disc of californium disc, about 1 mm in diameter.]]></media:description>                                                            <media:text><![CDATA[Californium]]></media:text>
                                <media:title type="plain"><![CDATA[Californium]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/arV3ggb99U2nV7tnACMRHF-1280-80.jpg" />
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                                <item>
                                                            <title><![CDATA[ Star 'DNA' Survey Could Reunite the Sun with Its Long-Lost Siblings ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/62340-star-survey-reveals-stellar-dna.html</link>
                                                                            <description>
                            <![CDATA[ Is the sun due for a cosmic family reunion? ]]>
                                                                                                            </description>
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                                                                        <pubDate>Wed, 18 Apr 2018 18:11:06 +0000</pubDate>                                                                                                                                <updated>Tue, 20 Jan 2026 13:56:10 +0000</updated>
                                                                                                                                            <category><![CDATA[The Sun]]></category>
                                                    <category><![CDATA[Space]]></category>
                                                    <category><![CDATA[Astronomy]]></category>
                                                                                                                    <dc:creator><![CDATA[ Mindy Weisberger ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/hLLcUfHMTYWQ3EA7MBnp4D-1280-80.jpg">
                                                            <media:credit><![CDATA[SDO/NASA]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Elements in distant stars could reveal whether they originated in the same stellar nursery as our sun. ]]></media:description>                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/hLLcUfHMTYWQ3EA7MBnp4D-1280-80.jpg" />
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                                <item>
                                                            <title><![CDATA[ Facts About Hafnium ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/38591-hafnium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element hafnium. ]]>
                                                                                                            </description>
                                                                                                                                <guid isPermaLink="false">nNcwVbcgzhey89ineKJrtY</guid>
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                                                                        <pubDate>Sat, 31 Mar 2018 02:05:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:21:47 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Traci Pedersen ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/476mwLnFvNQhpUyNpNu2zn-1280-80.jpg">
                                                            <media:credit><![CDATA[Images of elements]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Electrolytic hafnium, 22 grams. This piece is 1 x 2 x 3 cm.]]></media:description>                                                            <media:text><![CDATA[hafnium]]></media:text>
                                <media:title type="plain"><![CDATA[hafnium]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/476mwLnFvNQhpUyNpNu2zn-1280-80.jpg" />
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                                <item>
                                                            <title><![CDATA[ Element news, features and articles  ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/chemistry/elements</link>
                                                                            <description>
                            <![CDATA[ Explore the periodic table and beyond with the latest news, features and articles about elements from Live Science. ]]>
                                                                                                            </description>
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                                                                        <pubDate>Thu, 01 Feb 2018 16:57:05 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:05:58 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Jeanna Bryner ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/uusfi2Z7jEj7gpWvCUxMhK-1280-80.jpg">
                                                            <media:credit><![CDATA[Tetra Images via Getty Images]]></media:credit>
                                                                                                                                                                                                                                    <media:description><![CDATA[Beakers in front of the periodic table.]]></media:description>                                                            <media:text><![CDATA[Beakers in front of the periodic table.]]></media:text>
                                <media:title type="plain"><![CDATA[Beakers in front of the periodic table.]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/uusfi2Z7jEj7gpWvCUxMhK-1280-80.jpg" />
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                                <item>
                                                            <title><![CDATA[ What in the World Is Metallic Hydrogen? ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/61430-what-is-metallic-hydrogen.html</link>
                                                                            <description>
                            <![CDATA[ Hydrogen in extreme conditions, like below the cloud tops of Jupiter, starts acting…very strange. ]]>
                                                                                                            </description>
                                                                                                                                <guid isPermaLink="false">x5jy5fGsEk2U96oUALTpZe</guid>
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                                                                        <pubDate>Tue, 16 Jan 2018 11:49:51 +0000</pubDate>                                                                                                                                <updated>Tue, 06 Aug 2019 22:56:47 +0000</updated>
                                                                                                                                            <category><![CDATA[Space]]></category>
                                                                                                                    <dc:creator><![CDATA[ Paul Sutter ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/m4H4fyd767y8aL3QJb6X4F-1280-80.jpg">
                                                            <media:credit><![CDATA[Lella Erceg, Lycee Francais de Toronto/NASA/SwRI/MSSS]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Below Jupiter&#039;s swirling cloud tops, the common element hydrogen exists in a very strange state.]]></media:description>                                                            <media:text><![CDATA[Below Jupiter&#039;s swirling cloud tops, the common element hydrogen exists in a very strange state.]]></media:text>
                                <media:title type="plain"><![CDATA[Below Jupiter&#039;s swirling cloud tops, the common element hydrogen exists in a very strange state.]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/m4H4fyd767y8aL3QJb6X4F-1280-80.jpg" />
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                                <item>
                                                            <title><![CDATA[ Here Come the Macy's Balloons, There Goes Our Helium? ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/60998-macys-balloons-wont-use-up-helium.html</link>
                                                                            <description>
                            <![CDATA[ Are helium-inflated parade balloons making frivolous use of a limited and dwindling natural resource? ]]>
                                                                                                            </description>
                                                                                                                                <guid isPermaLink="false">i9WmSRz5TvL9FSiVCMDVu8</guid>
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                                                                        <pubDate>Wed, 22 Nov 2017 11:42:53 +0000</pubDate>                                                                                                                                <updated>Tue, 07 Jan 2025 11:46:04 +0000</updated>
                                                                                                                                            <category><![CDATA[Technology]]></category>
                                                                                                                    <dc:creator><![CDATA[ Mindy Weisberger ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/X2DENyKa69RicdtHRZwaqW-1280-80.jpg">
                                                            <media:credit><![CDATA[Macy&#039;s, Inc.]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[A helium-filled &quot;Elf on a Shelf&quot; balloon hovers above the crowds in New York City, during the 2016 Macy&#039;s Thanksgiving Day Parade.]]></media:description>                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/X2DENyKa69RicdtHRZwaqW-1280-80.jpg" />
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                                                            <title><![CDATA[ Facts About Bismuth ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39451-bismuth.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element bismuth. ]]>
                                                                                                            </description>
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                                                                        <pubDate>Tue, 21 Nov 2017 02:20:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:30:51 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Carol Stoll ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/YJ2yGH57893ii9sK7AGFRn-1280-80.jpg">
                                                            <media:credit><![CDATA[Images of Elements ]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Pure bismuth can grow beautiful crystals. It’s an easy experiment you can do at home.]]></media:description>                                                            <media:text><![CDATA[Bismuth]]></media:text>
                                <media:title type="plain"><![CDATA[Bismuth]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/YJ2yGH57893ii9sK7AGFRn-1280-80.jpg" />
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                                                            <title><![CDATA[ Facts About Neptunium ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39808-facts-about-neptunium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element neptunium. ]]>
                                                                                                            </description>
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                                                                        <pubDate>Tue, 10 Oct 2017 22:55:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 13:53:18 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Carol Stoll ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/mQW3yBaX5wGArZcV72DBLn-1280-80.jpg">
                                                            <media:credit><![CDATA[Los Alamos National Lab]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[This nickel-clad neptunium sphere was used to experimentally determine the critical mass of neptunium at Los Alamos National Lab.]]></media:description>                                                            <media:text><![CDATA[Neptunium sphere]]></media:text>
                                <media:title type="plain"><![CDATA[Neptunium sphere]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/mQW3yBaX5wGArZcV72DBLn-1280-80.jpg" />
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                                                            <title><![CDATA[ Bazinga! 'Big Bang Theory' Catchphrase Inspires New Compound ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/59939-big-bang-theory-bazinga-new-compound.html</link>
                                                                            <description>
                            <![CDATA[ The catchphrase "bazinga" — a zinger commonly uttered by Dr. Sheldon Cooper, a fictional theoretical physicist on the TV show "The Big Bang Theory" — has inspired the creation of a novel compound. ]]>
                                                                                                            </description>
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                                                                        <pubDate>Wed, 26 Jul 2017 09:30:18 +0000</pubDate>                                                                                                                                <updated>Tue, 07 Jan 2025 11:43:50 +0000</updated>
                                                                                                                                            <category><![CDATA[Arts &amp; Entertainment]]></category>
                                                    <category><![CDATA[Human Behavior]]></category>
                                                                                                <author><![CDATA[ lgeggel@livescience.com (Laura Geggel) ]]></author>                    <dc:creator><![CDATA[ Laura Geggel ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/MXQ4mTD7FCw5kKpJ55jmPY-1280-80.jpg">
                                                            <media:credit><![CDATA[Cliff Lipson/CBS]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Dr. Sheldon Cooper (Jim Parsons) is widely known for his catchy (often ill-timed) wisecrack, &quot;Bazinga!&quot;]]></media:description>                                                            <media:text><![CDATA[Big Bang Theory]]></media:text>
                                <media:title type="plain"><![CDATA[Big Bang Theory]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/MXQ4mTD7FCw5kKpJ55jmPY-1280-80.jpg" />
                                                                                        </item>
                                <item>
                                                            <title><![CDATA[ Facts About Astatine ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39514-facts-about-astatine.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element astatine. ]]>
                                                                                                            </description>
                                                                                                                                <guid isPermaLink="false">WJ4YjmkPFEvyLJNqzn7XQJ</guid>
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                                                                        <pubDate>Wed, 24 May 2017 00:42:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 13:45:44 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Rachel Ross ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/FqUbScbZhKnEFTa4UEahVY-1280-80.jpg">
                                                            <media:credit><![CDATA[Andrei Marincas | Shutterstock]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Astatine]]></media:description>                                                            <media:text><![CDATA[astatine]]></media:text>
                                <media:title type="plain"><![CDATA[astatine]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/FqUbScbZhKnEFTa4UEahVY-1280-80.jpg" />
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                                                            <title><![CDATA[ Facts About Americium ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39874-facts-about-americium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element americium. ]]>
                                                                                                            </description>
                                                                                                                                <guid isPermaLink="false">53SAdnAYzQqxAiERJf7Ba3</guid>
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                                                                        <pubDate>Tue, 23 May 2017 02:31:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 11:56:02 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Rachel Ross ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/zuLGJFsTeYRAucNofmLznM-1280-80.jpg">
                                                            <media:credit><![CDATA[Bionerd]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[A disc of americium viewed under a microscope.]]></media:description>                                                            <media:text><![CDATA[Americium]]></media:text>
                                <media:title type="plain"><![CDATA[Americium]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/zuLGJFsTeYRAucNofmLznM-1280-80.jpg" />
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                                                            <title><![CDATA[ Why Is Hydrogen the Most Common Element in the Universe? ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/58498-why-is-hydrogen-the-most-common-element.html</link>
                                                                            <description>
                            <![CDATA[ Here's why hydrogen is so common in our universe. ]]>
                                                                                                            </description>
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                                                                        <pubDate>Sat, 01 Apr 2017 11:54:04 +0000</pubDate>                                                                                                                                <updated>Wed, 14 Jan 2026 10:33:43 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                <author><![CDATA[ lgeggel@livescience.com (Laura Geggel) ]]></author>                    <dc:creator><![CDATA[ Laura Geggel ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/6SjdmwsN4fSwbQsEnWS9qc-1280-80.jpg">
                                                            <media:credit><![CDATA[NASA.]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[ A Hubble Space Telescope image of the distant universe. ]]></media:description>                                                            <media:text><![CDATA[A Hubble image of the universe]]></media:text>
                                <media:title type="plain"><![CDATA[A Hubble image of the universe]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/6SjdmwsN4fSwbQsEnWS9qc-1280-80.jpg" />
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                                                            <title><![CDATA[ Facts About Thorium ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39686-facts-about-thorium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element thorium. ]]>
                                                                                                            </description>
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                                                                        <pubDate>Wed, 01 Mar 2017 03:33:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:37:49 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Rachel Ross ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/YRgaxPGFXjdyMB9f2XNaMA-1280-80.jpg">
                                                            <media:credit><![CDATA[Marten Eskil Winge]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Thor&#039;s Battle Against the Jötnar (1872) by Mårten Eskil Winge]]></media:description>                                                            <media:text><![CDATA[thor lightning]]></media:text>
                                <media:title type="plain"><![CDATA[thor lightning]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/YRgaxPGFXjdyMB9f2XNaMA-1280-80.jpg" />
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                                                            <title><![CDATA[ Facts About Einsteinium ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/40307-einsteinium.html</link>
                                                                            <description>
                            <![CDATA[ Einsteinium, the 99th element, was discovered in the debris from the first hydrogen bomb test. ]]>
                                                                                                            </description>
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                                                                        <pubDate>Sat, 21 Jan 2017 02:49:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:24:55 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Rachel Ross ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/F2C6yVnUEkSMXjt4CYQGPW-1280-80.jpg">
                                                            <media:credit><![CDATA[U.S. Department of Energy]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Photo shows 300 micrograms of einsteinium-253, which has a half-life of 20 days.]]></media:description>                                                            <media:text><![CDATA[Einsteinium]]></media:text>
                                <media:title type="plain"><![CDATA[Einsteinium]]></media:title>
                                                    </media:content>
                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/F2C6yVnUEkSMXjt4CYQGPW-1280-80.jpg" />
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                                                            <title><![CDATA[ Facts About Plutonium ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39871-facts-about-plutonium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element plutonium. ]]>
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                                                                        <pubDate>Thu, 08 Dec 2016 02:30:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 13:46:54 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Alina Bradford ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/XAwczibZgRZGD52w2UNsmb-1280-80.jpg">
                                                            <media:credit><![CDATA[U.S. Department of Energy]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[These buttons of refined plutonium metal were used in the core of the Fat Man bomb dropped on Nagasaki.]]></media:description>                                                            <media:text><![CDATA[Plutonium]]></media:text>
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                                                            <title><![CDATA[ Facts About Oganesson (Element 118) ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/41460-facts-about-ununoctium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of oganesson, Element 118, formerly called ununoctium. ]]>
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                                                                        <pubDate>Fri, 02 Dec 2016 03:25:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 13:37:31 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Tim Sharp ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/mZ3kkqkXvFw6k5fwctj4ue-1280-80.jpg">
                                                            <media:credit><![CDATA[AlexLMX | Shutterstock]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Oganesson]]></media:description>                                                            <media:text><![CDATA[oganesson]]></media:text>
                                <media:title type="plain"><![CDATA[oganesson]]></media:title>
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                                                            <title><![CDATA[ Facts About Tennessine (Element 117) ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/41459-facts-about-ununseptium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of tennessine, element 117, formerly called ununseptium. ]]>
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                                                                        <pubDate>Fri, 02 Dec 2016 02:36:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:04:34 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Tim Sharp ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/KWhkp9DhTpKHZErbhPxpvm-1280-80.jpg">
                                                            <media:credit><![CDATA[AlexLMX | Shutterstock]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Tennessine]]></media:description>                                                            <media:text><![CDATA[tennessine]]></media:text>
                                <media:title type="plain"><![CDATA[tennessine]]></media:title>
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                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/KWhkp9DhTpKHZErbhPxpvm-1280-80.jpg" />
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                                                            <title><![CDATA[ Facts About Moscovium (Element 115) ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/41424-facts-about-ununpentium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of moscovium, element 115, formerly called ununpentium. ]]>
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                                                                        <pubDate>Fri, 02 Dec 2016 02:17:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 13:47:41 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Tim Sharp ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/SZzx9rd2Gfe9aTygnfP7o3-1280-80.jpg">
                                                            <media:credit><![CDATA[AlexLMX | Shutterstock]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Moscovium]]></media:description>                                                            <media:text><![CDATA[moscovium]]></media:text>
                                <media:title type="plain"><![CDATA[moscovium]]></media:title>
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                                                            <title><![CDATA[ Facts About Nihonium (Element 113) ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/41416-facts-about-ununtrium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of nihonium, element 113, formerly called ununtrium. ]]>
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                                                                        <pubDate>Fri, 02 Dec 2016 01:38:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:26:49 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Tim Sharp ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/8wECyAvFaR9v3aprzbCRqg-1280-80.jpg">
                                                            <media:credit><![CDATA[AlexLMX | Shutterstock]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Nihonium]]></media:description>                                                            <media:text><![CDATA[nihonium]]></media:text>
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                                                            <title><![CDATA[ Facts About Iridium ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39143-iridium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element iridium. ]]>
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                                                                        <pubDate>Fri, 02 Dec 2016 01:20:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:33:40 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Alina Bradford ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/Lhqrokmoy5afcPygHxRGTX-1280-80.jpg">
                                                            <media:credit><![CDATA[Images of Elements]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Iridium is a very hard, brittle and dense metal and is also very rare.]]></media:description>                                                            <media:text><![CDATA[Iridium]]></media:text>
                                <media:title type="plain"><![CDATA[Iridium]]></media:title>
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                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/Lhqrokmoy5afcPygHxRGTX-1280-80.jpg" />
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                                <item>
                                                            <title><![CDATA[ Facts About Tungsten ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/38997-facts-about-tungsten.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element tungsten. ]]>
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                                                                        <pubDate>Fri, 18 Nov 2016 23:18:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:22:20 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Alina Bradford ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/w6rw4dJKFqDS69R3D7NHGj-1280-80.jpg">
                                                            <media:credit><![CDATA[farbled | Shutterstock]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[The element tungsten is found in the mineral wolframite.]]></media:description>                                                            <media:text><![CDATA[wolframite]]></media:text>
                                <media:title type="plain"><![CDATA[wolframite]]></media:title>
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                                                    <media:thumbnail url="https://cdn.mos.cms.futurecdn.net/w6rw4dJKFqDS69R3D7NHGj-1280-80.jpg" />
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                                <item>
                                                            <title><![CDATA[ Facts About Radium ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39623-facts-about-radium.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element radium. ]]>
                                                                                                            </description>
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                                                                        <pubDate>Fri, 14 Oct 2016 21:44:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:22:04 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Rachel Ross ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/HbD8WvJVDKv9pADp7csdqM-1280-80.jpg">
                                                            <media:credit><![CDATA[EPA]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Radium was used to make clock faces and hands glow in the dark in the 1900s.]]></media:description>                                                            <media:text><![CDATA[Antique clocks radium]]></media:text>
                                <media:title type="plain"><![CDATA[Antique clocks radium]]></media:title>
                                                    </media:content>
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                                <item>
                                                            <title><![CDATA[ Facts About Lead ]]></title>
                                                                                                                                                                                                <link>https://www.livescience.com/39304-facts-about-lead.html</link>
                                                                            <description>
                            <![CDATA[ Properties, sources and uses of the element lead. ]]>
                                                                                                            </description>
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                                                                        <pubDate>Thu, 06 Oct 2016 23:40:00 +0000</pubDate>                                                                                                                                <updated>Fri, 13 Feb 2026 12:22:12 +0000</updated>
                                                                                                                                            <category><![CDATA[Chemistry]]></category>
                                                                                                                    <dc:creator><![CDATA[ Traci Pedersen ]]></dc:creator>                                                                                                    <media:content type="image/jpeg" url="https://cdn.mos.cms.futurecdn.net/mLaEhhCh8zVuDya7oxedxA-1280-80.jpg">
                                                            <media:credit><![CDATA[Zbynek Burival | Shutterstock]]></media:credit>
                                                                                                                                                                        <media:description><![CDATA[Galena ore, a major source of lead.]]></media:description>                                                            <media:text><![CDATA[Galena lead ore]]></media:text>
                                <media:title type="plain"><![CDATA[Galena lead ore]]></media:title>
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