
NASA's Galaxy Evolution Explorer was launched on April 28, 2003. Its mission was to study the shape, brightness, size and distance of galaxies across 10 billion years of cosmic history. via NASA https://ift.tt/s1mWn3K
This composite image of the Cassiopeia A (or Cas A) supernova remnant, released Jan. 8, 2024, contains X-rays from Chandra (blue), infrared...
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