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Carl Sagan noted that the nitrogen in our DNA, calcium in our teeth, iron in our blood, and carbon in our apple pies were forged inside collapsing stars. He concluded that we are made of star stuff.
1mo
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Carl Sagan noted that the nitrogen in our DNA, calcium in our teeth, iron in our blood, and carbon in our apple pies were forged inside collapsing stars. He concluded that we are made of star stuff.
1mo
Carl Sagan noted that the nitrogen in our DNA, calcium in our teeth, iron in our blood, and carbon in our apple pies were forged inside collapsing stars. He concluded that we are made of star stuff.
1mo
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