| The Antennae: A pair of colliding galaxies about 
      60 million light years from Earth. 
 
 Caption: This montage of Chandra images shows 
      X-ray views of The Antennae (top), and a closeup of the system's central 
      region (lower left). These images are color coded to show low (red), medium 
      (green) and high (blue) energy X-rays produced by huge clouds of gas heated 
      to millions of degrees by the collision. Massive stars formed in the gas 
      clouds raced through their evolution in a few million years and exploded 
      as supernovas. Heavy elements manufactured inside these stars were blown 
      away by the explosions and enriched the clouds with heavy elements such 
      as neon, magnesium, silicon and iron. The Chandra image at the lower right 
      is processed and color-coded to show rich deposits of iron (red), magnesium 
      (green) and silicon (blue) elements.
 
 Scale: Top: Image is 4.8 arcmin per side; Bottom: 
      Each panel is 2 arcmin per side
 
 Chandra X-ray Observatory ACIS Images
 
 
 
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