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'Farfarout' is most distant object in our solar system. But it's not Planet Nine.There's a dwarf planet in our solar system, far beyond the orbit of Pluto, that swings so far away from the sun that from its perspective Earth and Saturn look like neighbors.
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Why Mars is having its busiest two weeks in 47 yearsIt's a busy February for Mars, with three probes from three separate space agencies arriving at the red planet over the course of just nine days. Here's why.
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Mystery of gamma radiation solved: Hidden cannibal star is just having dinnerThe mystery at the heart of an unexplained, bright point of gamma-ray light in the sky has been solved: a violent, whirling redback.
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A giant black hole suddenly went dark, and no one knows whyIn 2018, one of the brightest X-ray lights in the sky went dark, and scientists still aren't sure why.
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Seas will likely rise even faster than worst-case scenarios predicted by climate modelsSea levels will probably rise faster than the most mainstream climate models predict, according to a new study.
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2nd SpaceX 'Starship' explodes during landing testSpaceX tested one of its giant, silver "Starship" prototypes Tuesday (Feb. 2). And for the second time in two months, it exploded on landing.
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Chinese researchers to send an 'uncrackable' quantum message to spaceIt's now possible to send uncrackable quantum messages through thin air, and the people who figured out how to do it are getting ready to send the messages into space.
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'Sextuply-eclipsing sextuple star system' discovered whirling through the Milky WayEver ridden a teacup ride at a state fair? If so, you might have a small taste of life in a whirling, twirling sextuply-eclipsing sextuple star system.
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Hand sanitizer is causing an epidemic of chemical burns to children's eyesAll that sanitizer people have been using since the start of the COVID-19 epidemic has led to more than just dry hands and eye-watering smells: It's nearly blinding some children.
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SpaceX is about to run its final test of Starship SN9 before 1st launchSpaceX plans to test-fire its enormous Starship prototype's engines in Boca Chica, Texas at some point today (Jan. 20).
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Italian cops recover stolen da Vinci replica no one knew was missingA stolen copy of a da Vinci painting has turned up in an Italian apartment, even though no one knew it was missing. The museum where it was kept had been shuttered due to COVID-19.
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Now-dead radio telescope finds bizarre venomous-spider starData from the now-destroyed Arecibo radio telescope has revealed a bizarre new type of hybrid venomous-spider star.
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Watch NASA test the world's most powerful rocket ever on SaturdayNASA is going to light up the most powerful rocket it's ever built Saturday (Jan. 16), though it won't go anywhere.
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This might be the fastest magnetar in the whole galaxyA rapidly twirling, ultramagnetic 500-year-old infant has been spotted zipping at never-before-seen speeds through the Milky Way. It belongs to a super-rare flavor of super-rare star.
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NASA will soon fire up the most powerful rocket ever builtNASA plans to ignite an absolutely mammoth rocket on Jan. 17, the largest it's built since the Apollo program
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An alien machine already visited us, Harvard astrophysicist still contendsHarvard astrophysicist Avi Loeb has reignited a debate about whether alien life can explain an object that visited the solar system in 2017 in a scathing new book.
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New type of ultra-strong chemical bond discoveredSimilar to the bonds found in water, but way more powerful, this new bond could offer deep insight into the true workings of chemical reactions.
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We've already blown past the warming targets set by the Paris climate agreement, study findsA new study shows that due to pollution already released, Earth will eventually blow past Paris goals. But that doesn't mean all is lost.
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9 epic space discoveries you may have missed in 2020Medical discoveries dominated the news in 2020, but even under pandemic conditions, astronomers discovered amazing things in space in 2020.
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6 ways the hunt for dark matter changed in 2020This year saw a possible first detection of solar axions, and the possible death of the sterile neutrino.
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Mysterious asteroid the size of a dwarf planet is lurking in our solar systemThere's a giant asteroid somewhere out there in the solar system, and it hurled a big rock at Earth that left behind meteorites unlike any scientists had ever seen.
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Stunning telescope image of Jupiter and Saturn's Great Conjunction will amaze youA telescope close-up reveals the strange beauty of the Great Conjunction.
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Could the Christmas Star visible tonight actually be the Star of Bethlehem?Did the biblical "Star of Bethlehem" come back in 2020? It wouldn't be crazy to think so. But it's not the only possibility.
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Alien hunters detect mystery signal coming from the closest star systemAstronomers hunting for radio signals from alien civilizations have reportedly detected an "intriguing signal" from the direction of Proxima Centauri, the nearest star system to the sun.
