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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 August 24   
      
                          The Cartwheel Galaxy from Webb   
           Image Credit: NASA, ESA, CSA, STScI, Webb ERO Production Team   
      
      Explanation: To some, it looks like a wheel of a cart. In fact, because   
      of its outward appearance, the presence of a central galaxy, and its   
      connection with what looks like the spokes of a wheel, the galaxy on   
      the right is known as the Cartwheel Galaxy. To others, however, it   
      looks like a complicated interaction between galaxies awaiting   
      explanation. Along with the two galaxies on the left, the Cartwheel is   
      part of a group of galaxies about 500 million light years away in the   
      constellation Sculptor. The large galaxy's rim spans over 100,000 light   
      years and is composed of star forming regions filled with extremely   
      bright and massive stars. The Cartwheel's ring-like shape is the result   
      of gravitational disruption caused by a smaller galaxy passing through   
      a large one, compressing the interstellar gas and dust and causing a   
      star formation wave to move out like a ripple across the surface of a   
      pond. The featured recent image of the Cartwheel Galaxy by the Webb   
      Space Telescope reveals new details not only about where stars are   
      forming, but also about activity near the galaxy's central black hole.   
      
          Teachers & Students: Ideas for utilizing APOD in the classroom   
                          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,   
                              NASA Science Activation   
                                & Michigan Tech. U.   
      
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