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   CHRS: LATIN-1 2   
                           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 9   
      A starfield is shown with many stars and several faint light brown dust   
       clouds. In the center is a large cloud with brown dust and gas shells   
            lined in blue. Please see the explanation for more detailed   
                                   information.   
      
              Between Scylla and Charybdis: A Double Cosmic Discovery   
          Image Credit: M. Drechsler, Y. Sainty, A. Soto, N. Martino, L.   
          Leroux-Gere, S. Khallouqui, & A. Kaeouach; Text: Ogetay Kayali   
                                (Michigan Tech U.)   
      
      Explanation: Can you identify this celestial object? Likely not CÇö   
      because this is a discovery image. Massive stars forge heavy elements   
      in their cores and, after a few million years, end their lives in   
      powerful supernova explosions. These remnants cool relatively quickly   
      and fade, making them difficult to detect. To uncover such faint,   
      previously unknown supernova remnants, a dedicated group of amateur   
      astrophotographers searched through sky surveys for possible supernova   
      remnant candidates. The result: the first-ever image of supernova   
      remnant G115.5+9.1 CÇö named Scylla by its discoverersCÇöglowing faintly in   
      the constellation of the mythological King of Aethiopia: Cepheus.   
      Emission from hydrogen atoms in the remnant is shown in red, and faint   
      emission from oxygen is shown in hues of blue. Surprisingly, another   
      discovery lurked to the upper right: a faint, previously unknown   
      planetary nebula candidate. In keeping with mythological tradition, it   
      was named Charybdis (Sai 2) CÇö a nod to the ancient Greek expression   
      "caught between Scylla and Charybdis" from HomerCÇÖs Odyssey.   
      
                        Tomorrow's picture: leaky space orb   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Amber Straughn Specific rights apply.   
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                         A service of: ASD at NASA / GSFC,   
                              NASA Science Activation   
                                & Michigan Tech. U.   
      
   --- BBBS/Li6 v4.10 Toy-7   
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