Space
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NASA readies Orion for flight test despite recent space flight accidents
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Surprising cosmic light between galaxies suggests some stars are homeless
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What's it like working on Mars? Curiosity rover finds mineral and scientist speaks out
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Great balls of fire seen in US and Japan. Superman? Aliens? Or just meteors? [Videos]
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Orbital to drop problematic engine, will keep delivering to space station
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Rosetta landing site on comet named Agilkia
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Here's why the supermassive black hole in our Milky Way didn't gobble hydrogen gas cloud G2
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What really caused Virgin Galactic SpaceShipTwo to crash during test flight? Here are some theories
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Virgin Galactic SpaceShipTwo crash due to pilot error: NTSB
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Fireballs streak through the skies: Here's where people enjoyed the light shows
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Largest sunspot in 24 years continues to baffle scientists
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Dark energy is swallowing up dark matter. Is the universe in trouble?
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