MSGID: 1:153/757.0 a8603a3f   
   TZUTC: -0700   
   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.   
      
                                   2025 April 22   
        A full Moon is shown but with a much more detailed surface than is   
          usually visible. Many craters, dark lunar mare, and light lunar   
      highlands are discernable. Please see the explanation for more detailed   
                                   information.   
      
                      Terminator Moon: A Moonscape of Shadows   
                       Image Credit & Copyright: Rich Addis   
      
      Explanation: What's different about this Moon? It's the terminators. In   
      the featured image, you can't directly see any terminator -- the line   
      that divides the light of day from the dark of night. That's because   
      the featured image is a digital composite of many near-terminator lunar   
      strips over a full Moon. Terminator regions show the longest and most   
      prominent shadows -- shadows which, by their contrast and length, allow   
      a flat photograph to appear three-dimensional. The overlay images were   
      taken over two weeks in early April. Many of the Moon's craters stand   
      out because of the shadows they all cast to the right. The image shows   
      in graphic detail that the darker regions known as maria are not just   
      darker than the rest of the Moon -- they are also flatter.   
      
            Dial-A-Moon: Find the Moon phase on your birthday this year   
                       Tomorrow's picture: almost everything   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Amber Straughn Specific rights apply.   
                     NASA Web Privacy, Accessibility, Notices;   
                         A service of: ASD at NASA / GSFC,   
                              NASA Science Activation   
                                & Michigan Tech. U.   
      
   --- BBBS/Li6 v4.10 Toy-7   
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