You Are Made Of Stars

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.

04:18

Key Facts In This Video

  • 1

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

  • 2

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

  • 3

    Every person is made of approximately 53 percent water. (2:49)

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