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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.
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Exotic, fifth state of matter created on the space stationScientists have generated an exotic form of matter in the unique microgravity environment aboard the International Space Station and are using it to explore the quantum world, a new study finds.
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Heavy-metal alien planet may be shaped like a footballAn exoplanet may be shaped like an American football due to the mighty gravitational forces it experiences close to its star, a new study finds.
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Space-time is swirling around a dead star, proving Einstein right againThe way the fabric of space and time swirls in a cosmic whirlpool around a dead star has confirmed yet another prediction from Einstein's theory of general relativity, a new study finds.
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Humanity's Oldest Cave Art Shows Shape-Shifting Supernatural HuntersResearchers have discovered humanity's oldest cave art. The paintings depict a hunting scene with what may be part-animal, part-human figures.
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Ancient Ape with 'Human Legs' and 'Orangutan Arms' Moved Like No Other Creature on EarthThis weird locomotion has never been seen until now.
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The 'Gay Gene' Is a Total Myth, Massive Study ConcludesBut collectively, genes do play a role in sexual orientation.
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Earliest Evidence of Human Mountaineers Found in EthiopiaPrevious research had suggested that high-altitude regions such as Tibet and the Andes were among the last places peopled by humans.
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Maya Civilization Was Ultraviolent, Even Before Its CollapseHieroglyphic inscription may overturn view of the Maya.
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Einstein's Theory of Relativity Holds Up Around a Supermassive Black HoleAstronomers have shown that Einstein's ideas about the warping of space and time holds true as the best description yet of how gravity works.
