<p>The Crab Nebula is a supernova remnant, all that remains of a tremendous stellar explosion. Observers in China and Japan recorded the supernova nearly 1,000 years ago, in 1054.
</p><p>Credit: NASA, ESA, J. Hester and A. Loll (Arizona State University)
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<a rel="nofollow" class="external text" href="https://www.flickr.com/people/24662369@N07">NASA Goddard Space Flight Center</a> from Greenbelt, MD, USA
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/gsfc/4398655649/">Crab Nebula</a>