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Astronomers spot giant hidden 'bridge' and record-breaking tail between 2 dwarf galaxiesResearchers discovered a hidden 185,000 light-year "bridge" of gas between two distant galaxies, which are also trailed by a 1.6 million light-year galactic tail — the largest of its kind ever seen.
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Superbright 'Comet Lemmon' gets its tail temporarily torn to pieces by solar windAn astrophotographer snapped a stunning shot of Comet Lemmon's flowing tail getting shredded by a strong gust of solar wind, just three days before it reaches its closest point to Earth.
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Superbright 'Comet Lemmon' flies through auroras over Scotland during surprise solar stormA photographer snapped a striking shot of Comet Lemmon streaking over Scotland as the night sky unexpectedly filled up with a technicolor mix of vibrant auroras.
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Pair of 'holy' islands in eerily green African lake hold centuries-old relics and mummified emperorsEarth from space A 2017 astronaut photo shows the islands of Dek and Daga lurking in the murky, algae-infested waters of Ethiopia's Lake Tana. Both islands are home to important monasteries, including the resting place of five mummified emperors.
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Live Science crossword puzzle #15: Explosive death of a star — 11 downScience crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Record-breaking 'dark object' found hiding within a warped 'Einstein ring' 10 billion light-years awayResearchers have found a suspected clump of dark matter lurking within the luminous halo of a well-known "Einstein ring." The mysterious object, the smallest of its kind ever seen, could help shed light on the universe's missing matter.
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'Most pristine' star ever seen discovered at the Milky Way's edge — and could be a direct descendant of the universe's first starsAstronomers have discovered a surprisingly "pristine" red giant with the lowest concentration of heavy elements ever seen in a star. It is likely a direct descendant of one of the universe's first stars.
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We were wrong about how the moon's largest and oldest crater formed — and that's great news for NASA's next lunar landingA 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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Shapeshifting 'braided river' in Tibet is the highest in the world, and is becoming increasingly unstableEarth from space A 2025 satellite photo shows a particularly complex section of the Yarlung Zangbo River as it twists its way through the Tibetan Plateau. This part of the "braided" waterway has experienced drastic visual changes over recent decades, which could soon be accentuated by climate change.
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Live Science crossword puzzle #14: Fast dinosaur with a killer toe claw — 14 across
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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'Planet Y' theory hints at hidden Earth-size world lurking in the solar system — and it could be much closer to us than 'Planet Nine'A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth than the hypothetical Planet X, which astronomers have been hunting for almost a decade. However, the evidence for this newly theorized world is "not definitive."
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The whale-shaped island in Belize with a 'great blue blowhole'Earth from space This 2020 astronaut photo shows the unusual cetacean-like shape of Belize's Lighthouse Reef. It's home to the famous Great Blue Hole, which doubles as the island's "blowhole" when viewed from space.
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Live Science crossword puzzle #13: Biggest country on Earth (by land area) — 7 down
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Newly discovered comet 'Lemmon' may be visible to the naked eye this month — but it will look more like a limeComet Lemmon, discovered earlier this year, will make a close approach to Earth later this month, giving skywatchers the chance to see its surprising lime-green glow.
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James Webb telescope spies a 'farting' dwarf planet with fluorescent gas in the outer solar systemNew observations suggest that the dwarf planet Makemake is surrounded by faintly glowing methane gas. Scientists are unsure if the gas is contained within a wispy atmosphere or being ejected into space.
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Sea of Saharan 'star dunes' clashes with otherworldly terrain where 2 countries meetEarth from space A 2017 satellite photo shows the stark contrast along the boundary between a giant field of golden "star dunes" and a barren rocky wilderness in the Sahara, which overlaps with an international border.
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Live Science crossword puzzle #12: The heart of an atom — 6 down
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Extreme 'golf ball-size' hailstones carve 125-mile 'scar' in Canadian landscapeEarth from space This 2025 satellite photo shows the aftermath of a devastating hailstorm in Alberta, Canada, which destroyed property, collapsed pylons and killed at least two animals.
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Live Science crossword puzzle #11: Giant cloud at the edge of the solar system — 7 across
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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New report warns that China could overtake the US as top nation in space — and it could happen 'in 5-10 years,' expert claimsA new report from the Commercial Space Federation warns that China could soon overtake the U.S. in the "new space race." The country's rapid progression starkly contrasts the limitations imposed on NASA by record-breaking budget cuts.
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'The sun is slowly waking up': NASA warns that there may be more extreme space weather for decades to comeA new NASA study suggests that solar activity will remain high or rise further in the coming decades, contradicting previous assumptions that the sun was quieting down — and scientists "don't completely understand" why.
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Skyscraper-size asteroid previously predicted to hit us in 60 years will zoom past Earth on Thursday (Sept. 18) — and you can see it liveThe "potentially hazardous" asteroid 2025 FA22 will fly close past Earth at more than 24,000 mph on Thursday (Sept. 18). The space rock was previously predicted to have a slim chance of impacting our planet in 2089, temporarily earning it the top spot on a major risk list.
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'A genuine surprise': Near-Earth asteroid Ryugu once had 'flowing water' that transformed its insidesA new analysis of asteroid Ryugu hints that the "potentially hazardous" space rock once had flowing water in its core, possibly leftover from the impact that created it.
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Volcanic 'googly eyes' stare into space from skull-like peninsulaEarth from space A 2014 astronaut photo shows a pair of volcanic lakes appearing to stare up into space from the Chiltepe Peninsula of Nicaragua's Lake Managua. These "eyes" and "skull" were created by violent eruptions thousands of years ago.
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