A New Type of Supernova Unlocks Thousand-Year-Old Stellar Mysteries
Science Science / Space Starstruck

A New Type of Supernova Unlocks Thousand-Year-Old Stellar Mysteries

Around July 4, 1054, Chinese astronomers recorded a "guest star" that shone so brightly, it was visible in broad daylight for 23 days. The remnants of that long-ago supernova now form the Crab Nebula, which…