SHA-1 described at URL: https://chandra.si.edu/photo/1999/casajph URL: https://chandra.si.edu/photo/1999/casajph/casa_scale.tif determination method or standard:...
SHA-1 described at URL: https://chandra.si.edu/photo/1999/casajph URL: https://chandra.si.edu/photo/1999/casajph/casa_scale.jpg determination method: JImagehash...
SHA-1 described at URL: https://chandra.si.edu/photo/1999/casajph URL: https://chandra.si.edu/photo/1999/casajph/casa.tif determination method or standard:...
English Chandra X-ray image of the supernovas remnant Cassiopeia A (Cas A). determination method or standard: work of the federal government of the United...
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