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The Crab Nebula lies about 6,500 light-years away in the constellation Taurus.

Crab Nebula - Explanation: The Crab Nebula is cataloged as M1, the first object on Charles Messier's famous list of things which are not comets. In fact, the cosmic Crab is now known to be a supernova remnant, an expanding cloud of debris from the death explosion of a massive star. Light from that stellar catastrophe was first witnessed by astronomers on planet Earth in the year 1054.

Image Source: NASA (public domain)
http://antwrp.gsfc.nasa.gov/apod/ap051202.html