Comets
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How to Find Comet Lovejoy, the New Year's Comet
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Comet Dust Found on Earth for First Time, Locked in Ice and Snow
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Rosetta's nose sniffs rotten eggs: Why does comet 67P/Churyumov-Gerasimenko smell so?
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Two families, hundreds of comets: ‘Exocomets’ found circling distant star
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NASA preps for Comet Siding Spring's Mars flyby: Why scientists are going gaga over it
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Earth water predates Solar System: Study may help understand formation of life on exoplanets
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Rosetta lander snaps awesome selfie with target comet 67P/Churyumov-Gerasimenko
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Interstellar dust found on spacecraft could be oldest samples ever
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Rosetta approaches deep space comet with ‘dark, dusty crust’
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Early Earth was bombarded by massive space rocks and oceans 'boiled away into steam'
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Space rocks pummeled early Earth, computer simulation depicts 'violent past'
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Comet-chaser Rosetta wakes up instruments, sends back images of icy and rocky 67P/Churumov-Gerasimenko
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