Cosmic Death and Rebirth: The Discovery of Supernova ASASSN-15lh

Let’s talk today’s big science news! I remember — or I think I remember — Carl Sagan saying in the original Cosmos, “We are made of starstuff.” That’s true. We are. The Big Bang produced a lot of plasma and a lot of hydrogren. The hydrogen came together and formed the first stars. As stars … Continue reading Cosmic Death and Rebirth: The Discovery of Supernova ASASSN-15lh