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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.   
      
                                   2025 March 19   
      
                             Blue Ghost's Diamond Ring   
                          Image Credit: Firefly Aerospace   
      
      Explanation: On March 14 the Full Moon slid through Earth's dark umbral   
      shadow and denizens of planet Earth were treated to a total lunar   
      eclipse. Of course, from the Moon's near side that same astronomical   
      syzygy was seen as a solar eclipse. Operating in the Mare Crisium on   
      the lunar surface, the Blue Ghost lander captured this video frame of   
      Earth in silhouette around 3:30am CDT, just as the Sun was emerging   
      from behind the terrestrial disk. From Blue Ghost's lunar perspective   
      the beautiful diamond ring effect, familiar to earthbound solar eclipse   
      watchers, is striking. Since Earth appears about four times the   
      apparent size of the Sun from the lunar surface the inner solar corona,   
      the atmosphere of the Sun most easily seen from Earth during a total   
      solar eclipse, is hidden from view. Still, scattering in Earth's dense   
      atmosphere creates the glowing band of sunlight embracing our fair   
      planet.   
      
                    Tomorrow's picture: welcome to the equinox   
        __________________________________________________________________   
      
          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.   
      
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