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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.   
      
                                  2022 February 8   
      
                       Aurora and Light Pillars over Norway   
                    Image Credit & Copyright: Alexandre Correia   
      
      Explanation: Which half of this sky is your favorite? On the left, the   
      night sky is lit up by particles expelled from the Sun that later   
      collided with Earth's upper atmosphere CÇö creating bright auroras. On   
      the right, the night glows with ground lights reflected by millions of   
      tiny ice crystals falling from the sky CÇö creating light pillars. And in   
      the center, the astrophotographer presents your choices. The light   
      pillars are vertical columns because the fluttering ice-crystals are   
      mostly flat to the ground, and their colors are those of the ground   
      lights. The auroras cover the sky and ground in the green hue of   
      glowing oxygen, while their transparency is clear because you can see   
      stars right through them. Distant stars dot the background, including   
      bright stars from the iconic constellation of Orion. The featured image   
      was captured in a single exposure two months ago near Kautokeino,   
      Norway.   
      
        Favorite sky half: Left half (aurora) | Right half (light pillars)   
                    Tomorrow's picture: to circle a dying star   
        __________________________________________________________________   
      
          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   
                                & Michigan Tech. U.   
   --- BBBS/Li6 v4.10 Toy-5   
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