This solves a long-standing mystery in cosmology. Our bodies are made of heavy elements beyond iron, but our sun is not hot enough to forge them. If the earth and the atoms of our bodies were originally from the same gas cloud, then where did the heavy elements of our bodies come from? The conclusion is inescapable: the heavy elements in our bodies were synthesized in a supernova that blew up before our sun was created. In other words, a nameless supernova exploded billions of years ago, seeding the original gas cloud that created our solar system.