You Are Made Of Stars

Carl Sagan famously wrote in 1973, "We are all made of star-stuff." Everything in the universe heavier than hydrogen was made billions of years ago in the interior of a red giant star. Yes, this includes a lot of your body.

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Key Facts In This Video

  1. Everything in the universe heavier than hydrogen was made from a star. 01:02

  2. Supernovae can generate enough heat to fuse together some of the heaviest elements, creating massive waves of energy. 02:11

  3. Every person is made of approximately 53 percent water. 02:49

Written by Curiosity Staff October 22, 2014

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