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Stuff that matters (M&G)

Friday, September 19th, 2008 | Mail & Guardian column | No Comments

Give me a pearly white smile! There you go. Now consider this: the calcium in your teeth was cooked up inside a giant red star, billions of years ago. So were the iron in your blood and the carbon in your genes.

In fact much of the stuff that makes up you and me was made in those cosmic laboratories a long, long time ago. That’s how astronomer Carl Sagan put it. We’re made of “star stuff”.

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Tags: cosmology