This is all old knowledge. I'm mystified why it's suddenly 'breaking news'.<p>Carl Sagan: 'We are all made of star stuff.' - "Cosmos, 1980"<p><a href="https://www.goodreads.com/quotes/144310-the-nitrogen-in-our-dna-the-calcium-in-our-teeth" rel="nofollow">https://www.goodreads.com/quotes/144310-the-nitrogen-in-our-...</a>