An exploding star in the year 1054 creates fascinating remnants still seen today The supernova of 1054 was one of the brightest supernova events recorded in history. And its remnant, the Crab Nebula, is still studied today. Beginning at the moment of a supernova explosion thousands of years ago, this story travels forward in time to 1054, the year people around the world saw the unparalleled light of an exploding star appear in Earth's sky. The story...