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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 June 18   
        A detailed view of part of Earth's Moon is shown with many craters   
        visible. On the lower right, silhouetted against the comparatively   
        bright Moon, is a small dark silhouette of the International Space   
         Station. Many of the solar panels on the station are discernable.   
             Please see the explanation for more detailed information.   
      
                       Space Station Silhouette on the Moon   
                      Image Credit & Copyright: Eric Holland   
      
      Explanation: What's that unusual spot on the Moon? It's the   
      International Space Station. Using precise timing, the Earth-orbiting   
      space platform was photographed in front of a partially lit gibbous   
      Moon in 2019. The featured image was taken from Palo Alto, California,   
      USA with an exposure time of only 1/667 of a second. In contrast, the   
      duration of the transit of the ISS across the entire Moon was about   
      half a second. A close inspection of this unusually crisp ISS   
      silhouette will reveal the outlines of numerous solar panels and   
      trusses. The bright crater Tycho is visible on the lower left, as well   
      as comparatively rough, light colored terrain known as highlands and   
      relatively smooth, dark colored areas known as maria. Downloadable apps   
      can tell you when the International Space Station will be visible from   
      your area.   
      
          APOD Turns 30!: Free Public Lecture in Cork, Ireland on June 24   
                      Tomorrow's picture: galaxy in a bubble   
        __________________________________________________________________   
      
          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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