February 2012
93 posts
4 tags
Feb 25th
19 notes
3 tags
We are all stardust
Every atom in your body came from a star that exploded. And, the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics: You are all stardust. You couldn’t be here if stars hadn’t exploded, because the elements - the carbon, nitrogen, oxygen, iron, all the things that matter for evolution and for life -...
Feb 24th
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Feb 24th
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Feb 24th
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Feb 24th
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Feb 24th
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Feb 24th
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Feb 24th
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Feb 24th
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Feb 24th
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Feb 24th
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Feb 24th
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Feb 24th
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Feb 24th
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Feb 20th
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Feb 20th
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Feb 20th
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Feb 20th
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Feb 20th
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Feb 16th
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Feb 15th
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Feb 15th
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Feb 15th
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Feb 15th
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Feb 15th
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Feb 15th
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Feb 14th
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Feb 14th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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Feb 12th
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