NASA'S Fermi Spots 'Superflares' In The Crab Nebula
Tue, 10 May 2011 23:00:00 -0500The famous Crab Nebula supernova remnant has erupted in an enormous flare five times more powerful than any flare previously seen from the object. On April 12, NASA's Fermi Gamma-ray Space Telescope first detected the outburst, which lasted six days.
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