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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.   
      
                                   2024 July 30   
          Two large interacting galaxies are shown. The upper galaxy, has   
        significant internal structure and is curved over the lower galaxy   
         which is a featureless oval. Please see the explanation for more   
                               detailed information.   
      
                      Arp 142: Interacting Galaxies from Webb   
        Image Credit: NASA, ESA, CSA, STScI; Hubble Rollover Reprocessing &   
                            Copyright: Raul Villaverde   
      
      Explanation: To some, it looks like a penguin. But to people who study   
      the universe, it is an interesting example of two big galaxies   
      interacting. Just a few hundred million years ago, the upper NGC 2936   
      was likely a normal spiral galaxy: spinning, creating stars, and   
      minding its own business. Then it got too close to the massive   
      elliptical galaxy NGC 2937, below, and took a dive. Together known as   
      Arp 142, they are featured in this new Webb infrared image, while a   
      visible light Hubble image appears in comparison. NGC 2936 is not only   
      being deflected, but distorted, by this close gravitational   
      interaction. When massive galaxies pass near each other, gas is   
      typically condensed from which new stars form. A young group of stars   
      appears as the nose of the penguin toward the right of the upper   
      galaxy, while in the center of the spiral, bright stars together appear   
      as an eye. Before a billion years, the two galaxies will likely merge   
      into one larger galaxy.   
      
                   Explore Your Universe: Random APOD Generator   
                     Tomorrow's picture: unusual spots on Mars   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Amber Straughn Specific rights apply.   
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