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Mystery of galaxy's missing dark matter solved. (And it involves a thief.)A small, mysterious galaxy 44 million light-years away is finally yielding up its secrets.
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Our solar system will disintegrate sooner than we thoughtAlthough the ground beneath our feet feels solid and reassuring (most of the time), nothing in this universe lasts forever.
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Spacecraft with precious asteroid cargo is almost home after 3 billion-mile trekOn Dec. 6, 2020, after six years in space, the Japan Aerospace Exploration Agency's Hayabusa2 spacecraft will finally return to Earth.
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Hubble captures a black hole's 'shadow beams,' yawning across spaceIn images from the Hubble Space Telescope, scientists have spotted an entirely new phenomenon.
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Astronomers detect millions of signals from an intelligent civilization: UsThe Universe seems like a lonely place.
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This failed planet is slowly rusting in spaceRoughly two to three times Earth's distance from the sun, in the Asteroid Belt that lies between Mars and Jupiter, 16 Psyche makes its home.
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Astronomers peer into the atmosphere of a rare exoplanet that 'shouldn't exist'The discovery of the extraordinary exoplanet LTT 9779b was first announced a month ago.
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The first star in our galaxy caught sending out fast radio bursts is doing it againA little dead star that dazzled us earlier this year is not done with its shenanigans.
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The closest black hole to Earth may not actually be a black hole after allAn object identified earlier this year as the closest black hole we've ever discovered may have just been demoted.
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Earth's space junk problem is getting worse. And there's an explosive component.We really need to stop leaving trash everywhere we go.
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Astrophysicists figure out the total amount of matter in the universeResearchers have performed one of the most precise measurements yet to determine the proportion of matter in the universe.
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There's no speed limit in a superfluid universe. Now we know why.Physicists have figured out how objects traveling through a superfluid can exceed a critical speed limit.
