iron

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You’re made of carbon, you’re made of oxygen, there’s iron in your blood. All of those things had to be generated inside the core of a star. There’s no other way to get them. So when you think about star stuff, look around you. Everything that you’re made of, everything the world around you is made of had to come from the belly of a star that blew up a long time ago.

The last five minutes of Extreme Stars, an episode from the Discovery Channel’s How the Universe Works.

Updated links.