"Somewhere, something incredible is waiting to be known."
"All of the rocky and metallic material we stand on, the iron in our blood, the calcium in our teeth, the carbon in our genes were produced billions of years ago in the interior of a red giant star. We are made of star stuff."
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Source: Carl Sagan (1973). “Carl Sagan's Cosmic Connection: An Extraterrestrial Perspective”, p.190, Cambridge University Press
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