Eli5- How do scientists know we came from the stars?

Question

As the title says. Thank you!

In: 0

Answer 1

Stars (and supernovae, which come from stars) are the only place where we know nuclear fusion can take place. Any element that is more complex than hydrogen is a product of nuclear fusion; therefore, the atoms that make us up, like carbon, oxygen, and nitrogen (and more), had to have been created in stars or supernovae. Thus, we are made of “star-stuff.”