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Line 1: − The '''Crab Nebula''' is the remains of a [[star]] that exploded in a [[supernova]] in A.D. 1054. This supernova explosion was recorded by Chinese astronomers.<ref name="universe"> ''Universe: The Definitive Visual Guide'' DK Publishing (2005) </ref> At its center there is a [[pulsar]] that is rotating some 30 times a second. + − − ==References== − {{reflist}} − − {{Nebulae}}
made into redirect
#REDIRECT[[Crab Nebula]]