February 24, 2011

Neutron Star in Cassiopeia A

This brief animation shows Cassiopeia A, the remains of a massive star 11,000 light years away from Earth, along with an illustrated inset of a neutron star within the supernova. X-rays from NASA’s Chandra X-ray Observatory are shown in red, green and blue along with optical data from the Hubble Space Telescope in gold. credit: NASA

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