Bobby and I started watching a documentary on the formation of black holes. In 2008, a powerful burst of gamma-rays signaling a cataclysmic event was detected by the orbiting Swift observatory. The location of this event was some 7.5 billion light years away. In conjunction with this, I covered the electromagnetic spectrum, and asked Bobby for examples representing each of the wavebands outside of the visible (infrared, microwave, radio, ultraviolet, X-ray, gamma-ray). We also calculated how far 7.5 billion light years is in miles: 4.5 billion trillion. That the source was that far away, and that the explosion was so bright, implies that this was an extremely catastrophic event, the only outcome being the formation of a black hole in a supernova explosion.