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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.   
      
                                    2023 July 4   
        Planet Venus is pictured in ultraviolet light. The spherical planet   
         appears circular in tan colors with hints of blue. Complex cloud   
        patterns are evident. Please see the explanation for more detailed   
                                   information.   
      
                          Aurora over Icelandic Waterfall   
                      Image Credit & Copyright: Cari Letelier   
      
      Explanation: It seemed like the sky exploded. The original idea was to   
      photograph an aurora over a waterfall. After waiting for hours under   
      opaque clouds, though, hope was running out. Others left. Then,   
      unexpectedly, the clouds moved away. Suddenly, particles from a large   
      solar magnetic storm were visible impacting the Earth's upper   
      atmosphere with full effect. The night sky filled with colors and   
      motion in a thrilling auroral display. Struggling to steady the camera   
      from high Earthly winds, the 34 exposures that compose the featured   
      image were taken. The resulting featured composite image shows the   
      photogenic Godafoss (Go+#afoss) waterfall in northern Iceland in front   
      of a very active aurora in late February. The solar surface explosion   
      that expelled the energetic particles occurred a few days before. Our   
      Sun is showing an impressive amount of surface activity as it   
      approaches solar maximum, indicating that more impressive auroras are   
      likely to appear in Earth's northern and southern sky over the next few   
      years.   
      
                        Tomorrow's picture: very large map   
        __________________________________________________________________   
      
          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.   
      
   --- BBBS/Li6 v4.10 Toy-6   
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