Every atom in your body came from a star that exploded. And the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics: you are all stardust.

Lawrence Maxwell Krauss (1954 CE-), Lawrence Krauss is an American-Canadian theoretical physicist and cosmologist who previously taught at Arizona State University, Yale University, and Case Western Reserve University. He founded ASU's Origins Project, now called ASU Interplanetary Initiative, to investigate fundamental questions about the universe and served as the project's director.