USA Science
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Study Says Climate Change Killed Off Woolly Mammoths, Not Humans
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Failed Russian satellite crashes back to Earth over the US and Canada
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NASA’s James Webb Space Telescope looks squeaky clean at spaceport for December launch (photos)
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Climate Change Wiped Out the Mammoth, New DNA Study Shows
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Jupiter hit by another space rock in rare views captured by Japanese skywatchers
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Hubble Space Telescope witnesses explosive star death
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NASA explains fireball that flew over Michigan this week
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Watch this wooden knife cut effortlessly through juicy, medium-well-done steak
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Mitochondria of diabetic patients can’t keep time
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NASA starts process to acquire more commercial crew missions
