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Water vapor detected on huge Jupiter moon Ganymede for 1st timeIn the wisp-thin sky of Jupiter's moon Ganymede, the largest satellite in the solar system, astronomers have for the first time detected evidence of water vapor, a new study finds.
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Mystery of Jupiter's powerful X-ray auroras finally solvedMysterious flares of X-rays from Jupiter's auroras suggest that the giant planet's "northern lights" may possess unexpected similarities with those of Earth, a new study finds.
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Star cluster overrun with black holes may dissolve into spaceA cluster composed of thousands of stars may dissolve to become a mob of dozens of black holes in a billion years.
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Unknown human ancestor unearthed in Israel. It had large teeth but no chin.Mysterious human may have been the ancestor of Neanderthals.
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Astronomers discover largest-known spinning structures in the universeTendrils of galaxies up to hundreds of millions of light-years long may be the largest spinning objects in the universe, a new study finds.
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Boulders on asteroid Ryugu are surprisingly fluffy, Japan's Hayabusa2 probe findsBoulders on asteroids can be three-quarters hollow or more, a discovery that could help yield insights on the way in which Earth and other planets formed, a new study finds.
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AI drone may have 'hunted down' and killed soldiers in Libya with no human inputA UN report suggests that AI drones attacked human targets without any humans consulted prior to the strike.
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Mars may still be volcanically active, study findsEvidence of what may be the youngest eruption seen yet on Mars suggests the Red Planet may still be volcanically active, raising the possibility it was recently habitable.
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Cats love boxes so much they'll even sit in fake onesCats like boxes so much, they will even climb into the illusion of a box, scientists find.
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Dying white dwarf stars may explode like a nuclear bombWhen a white dwarf star explodes as a supernova, it may be detonating like a nuclear weapon on Earth, a new study finds.
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Interstellar interloper 2I/Borisov may be the most pristine comet ever observedThe first known interstellar comet to visit our solar system may be the most pristine ever found, never passing near a star until visiting our own, researchers say.
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What if humans didn't have an appendix?What might life be like then if everyone lacked an appendix? That organ may not be a useless artifact of evolution after all.
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Mars may hide oceans of water beneath its crust, study findsOceans' worth of water may remain buried in the crust of Mars, and not lost to space as previously long thought, a new study finds.
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What if temperature determined a baby's sex?Temperature-dependent sex is found in certain reptiles and fish. Could it happen in humans?
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Pluto's haze made up of ice crystals with cyanide heartsThe haze shrouding Pluto might be made up of ice crystals possessing cyanide hearts, a new study finds.
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What if humans had photosynthetic skin?If humans had green skin, for instance, what if it granted us the ability to perform photosynthesis, which plants use to live off of sunlight?
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What if Earth shared its orbit with another planet?Earth is the only planet traveling within its nearly circular orbit around the sun. But what if Earth shared its orbit with another planet?
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What if all humans on Earth had albinism?What might the world be like if everyone on Earth had albinism, from prehistoric times until now?
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Nuclear fusion reactor could be here as soon as 2025A viable nuclear fusion reactor — one that spits out more energy than it consumes — could be here as soon as 2025.
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4 supersalty lakes may be hiding under the ice cap at Mars' south poleRemnants of water once found on the surface of Mars may be hidden in a handful of small lakes below the Red Planet's south pole, and more could exist, according to new research.
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Are some black holes wormholes in disguise? Gamma-ray blasts may shed clues.Unusual flashes of gamma rays could reveal that what appear to be giant black holes are actually huge wormholes, a new study finds.
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What if Earth had rings?What might Earth be like crowned with rings? Space and science- fiction illustrator Ron Miller created extraordinary images of how the sky might look if Earth possessed such rings.
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Will California's giant redwoods survive the raging wildfires?Will the majestic redwoods of California's coast survive the lightning-sparked fires raging across the state?
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What would happen if a black hole fell into a wormhole?
Astronomers might detect black holes falling into wormholes via ripples in space-time called gravitational waves, a new study finds.
