Apr2718AASAstroFacts 600

The Crab Nebula emits visible light, radio waves, X-rays & more, contains a pulsar spinning 30 times/sec & is expanding at over 900 miles/sec. It’s the remains of a supernova explosion of a large star, seen with the naked eye (even in daytime) in 1054. #gam2018 #RandomAstroFact