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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 June 15   
      
                         In the Heart of the Virgo Cluster   
                    Image Credit & Copyright: Saulius Adomaitis   
      
      Explanation: The Virgo Cluster of Galaxies is the closest cluster of   
      galaxies to our Milky Way Galaxy. The Virgo Cluster is so close that it   
      spans more than 5 degrees on the sky - about 10 times the angle made by   
      a full Moon. With its heart lying about 70 million light years distant,   
      the Virgo Cluster is the nearest cluster of galaxies, contains over   
      2,000 galaxies, and has a noticeable gravitational pull on the galaxies   
      of the Local Group of Galaxies surrounding our Milky Way Galaxy. The   
      cluster contains not only galaxies filled with stars but also gas so   
      hot it glows in X-rays. Motions of galaxies in and around clusters   
      indicate that they contain more dark matter than any visible matter we   
      can see. Pictured here, the heart of the Virgo Cluster includes bright   
      Messier galaxies such as Markarian's Eyes on the upper left, M86 just   
      to the upper right of center, M84 on the far right, as well as spiral   
      galaxy NGC 4388 at the bottom right.   
      
        Celestial Surprise: What picture did APOD feature on your birthday?   
                                    (post 1995)   
                     Birthday? Tomorrow's picture: open space   
        __________________________________________________________________   
      
          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.   
      
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