
When astronomers first looked at images of a supernova remnant called Cassiopeia A, captured by NASA NuSTAR. The mystery of Cassiopeia A Cas A, a massive star that exploded in a supernova more than 11,000 years ago continues to confound scientists.
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NASA ID
PIA17842
Date Created
February 19, 2014
Center
JPL
Media Type
image
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