The Crab Nebula Posted on 30 December, 2014 by wjjhoge In 1054 AD, Chinese astronomers were startled by the appearance of a new star, so bright it could be seen in broad daylight for several weeks. Today, the Crab Nebula is what’s left of the supernova explosion they witnessed. Image Credit: NASA Share this:TwitterLinkedInEmailPrintLike this:Like Loading...