Every atom in our bodies was fused in the body of an ancient star. NASA astronomer Dr. Michelle Thaller explains how the iron in our blood connects us to one of the most violent acts in the universe—a supernova explosion—and what the universe might look like when all the stars die out.
This video is a collaboration between The Really Big Questions and The Atlantic. Produced by Flora Lichtman and Katherine Wells.
You can also listen to TRBQ’s one-hour radio special, What Is a Good Death?