Highlights from the April physics meeting, Denver, April 13-16
Classifying the Crab Nebula supernova
In 1054, eyes turned to the sky as a giant star 6,500 light-years away exploded as a supernova. Today, what’s left behind is a colorful shell of gas and dust known as the Crab Nebula. Now an astronomer has laid out a blueprint of just how that star exploded.