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   CHRS: LATIN-1 2   
                           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.   
      
                                    2024 July 9   
          A dawn sky is shown that is black at the top and brown near the   
       horizon. Wispy clouds converge on the right turning from a white to a   
      blue hue. Near the apex of this convergence is a crescent moon. Please   
                see the explanation for more detailed information.   
      
                          Noctilucent Clouds over Florida   
                        Credit & Copyright: Pascal Fouquet   
      
      Explanation: These clouds are doubly unusual. First, they are rare   
      noctilucent clouds, meaning that they are visible at night -- but only   
      just before sunrise or just after sunset. Second, the source of these   
      noctilucent clouds is actually known. In this rare case, the source of   
      the sunlight-reflecting ice-crystals in the upper atmosphere can be   
      traced back to the launch of a nearby SpaceX rocket about 30 minutes   
      earlier. Known more formally as polar mesospheric clouds, the vertex of   
      these icy wisps happens to converge just in front of a rising crescent   
      Moon. The featured image -- and accompanying video -- were captured   
      over Orlando, Florida, USA about a week ago. The bright spot to the   
      right of the Moon is the planet Jupiter, while the dotted lights above   
      the horizon on the right are from an airplane.   
      
                          Tomorrow's picture: open space   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Amber Straughn Specific rights apply.   
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                         A service of: ASD at NASA / GSFC,   
                              NASA Science Activation   
                                & Michigan Tech. U.   
      
   --- BBBS/Li6 v4.10 Toy-7   
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