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                           Astronomy Picture of the Day   
      
       Discover the cosmos! Each day a different image or photograph of our   
         fascinating universe is featured, along with a brief explanation   
                       written by a professional astronomer.   
      
                                   2023 August 7   
      Mulitple filaments of dark brown run from top to bottom while a bright   
         orange dome with small pillars occurs on the bottom right. In the   
       background is a blue-glowing gas. Stars dot the frame. Please see the   
                    explanation for more detailed information.   
      
                    The Pelican Nebula in Gas, Dust, and Stars   
                           Credit & Copyright: Abe Jones   
      
      Explanation: The Pelican Nebula is slowly being transformed. IC 5070   
      (the official designation) is divided from the larger North America   
      Nebula by a molecular cloud filled with dark dust. The Pelican,   
      however, receives much study because it is a particularly active mix of   
      star formation and evolving gas clouds. The featured picture was   
      produced in three specific colors -- light emitted by sulfur, hydrogen,   
      and oxygen -- that can help us to better understand these interactions.   
      The light from young energetic stars is slowly transforming the cold   
      gas to hot gas, with the advancing boundary between the two, known as   
      an ionization front, visible in bright orange on the right.   
      Particularly dense tentacles of cold gas remain. Millions of years from   
      now, the Pelican nebula, bounded by dark nebula LDN 935, might no   
      longer be known as the Pelican, as the balance and placement of stars   
      and gas will surely leave something that appears completely different.   
      
                     Tomorrow's picture: Jupiter and the Moons   
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          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Phillip Newman Specific rights apply.   
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                         A service of: ASD at NASA / GSFC,   
                              NASA Science Activation   
                                & Michigan Tech. U.   
      
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