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Carl Sagan puts it straight: the nitrogen in our DNA, calcium in our teeth, iron in our blood, and carbon in our apple pies all came from inside collapsing stars. He says we are literally made of star stuff.
1mo
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Carl Sagan puts it straight: the nitrogen in our DNA, calcium in our teeth, iron in our blood, and carbon in our apple pies all came from inside collapsing stars. He says we are literally made of star stuff.
1mo
Carl Sagan puts it straight: the nitrogen in our DNA, calcium in our teeth, iron in our blood, and carbon in our apple pies all came from inside collapsing stars. He says we are literally made of star stuff.
1mo
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