Asteroid
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Is capturing asteroids a good idea? MIT scientist gives emphatic 'no'
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Age of Earth's water miscalculated...by 135 million years
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Mystery of Earth's water origin finally solved? It may be older than you think
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MIT planetary scientist has bizarre plan of sending humans to Mars: Use asteroids as stepping stones
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Explore the moon's intricate system of newly discovered valleys
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U.S. may keep nuclear warheads handy for giant asteroid threat
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Dinosaur-killing meteorite remade the plant kingdom
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Meteorite smashes into Nicaragua, leaving crater in Managua: Big BOOM stuns local people
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Asteroid 2014 RC buzzed by Earth dangerously close last weekend: What you should know
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NASA time capsule mission sends your tweets to space
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Near miss: Bus-sized space rock to fly dangerously close by Earth on Sunday
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Rosetta's potential landing sites to be revealed, mission gets first results
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