This is the first map of radioactivity in a supernova remnant, the blown-out bits and pieces of a massive star that exploded. The blue color shows radioactive material mapped in high-energy X-rays using NASA NuSTAR.
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Details
Title: Untangling the Remains of Cassiopeia A
Creator: NASA/JPL-Caltech/CXC/SAO
Date Created: 2014-02-19
Rights: JPL
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