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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 February 19   
       A dark field has a single, colorful, blurry structure in its center.   
       Red-colored jets extend out from the center toward the top and bottom   
       of the frame. A dark disk covers the center. Blue outflows appear on   
        both sides of the horizontal disk. To the lower left, a larger blue   
           outflow extends. Please see the explanation for more detailed   
                                   information.   
      
                   HH 30: A Star System with Planets Now Forming   
      Image Credit: James Webb Space Telescope, ESA, NASA & CSA, R. Tazaki et   
                                        al.   
      
      Explanation: How do stars and planets form? New clues have been found   
      in the protoplanetary system Herbig-Haro 30 by the James Webb Space   
      Telescope in concert with Hubble and the Earth-bound ALMA. The   
      observations show, among other things, that large dust grains are more   
      concentrated into a central disk where they can form planets. The   
      featured image from Webb shows many attributes of the active HH-30   
      system. Jets of particles are being expelled vertically, shown in red,   
      while a dark dust-rich disk is seen across the center, blocking the   
      light from the star or stars still forming there. Blue-reflecting dust   
      is seen in a parabolic arc above and below the central disk, although   
      why a tail appears on the lower left is currently unknown. Studying how   
      planets form in HH 30 can help astronomers better understand how   
      planets in our own Solar System once formed, including our Earth.   
      
                              Tomorrow's picture: M87   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Amber Straughn Specific rights apply.   
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                              NASA Science Activation   
                                & Michigan Tech. U.   
      
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