Contact: Christine Pulliam
Harvard-Smithsonian Center for Astrophysics
Caption: Chandra X-ray Observatory image of the supernova remnant Cassiopeia A (Cas A). The red, green, and blue regions in this X-ray image of Cas A show where the intensity of low, medium, and high-energy X-rays, respectively, is greatest. While this photo shows the remains of the exploded star, light echoes show us reflected light from the explosion itself.
Credit: NASA/CXC/MIT/UMass Amherst/M.D.Stage et al.
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