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   ESSNASA      Earth & Space Sci-Tech + NASA      10,823 messages   

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   Message 10,731 of 10,823   
   Alan Ianson to All   
   Daily APOD Report   
   05 Jan 26 20:13:14   
   
   MSGID: 1:153/757.0 d7ddaa3b   
   TZUTC: -0800   
   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.   
      
                                  2026 January 5   
       A dark field surrounds a red nebula. The shape of the nebula appears   
                                  like the letter   
      
                       The Red Rectangle Nebula from Hubble   
        Image Credit: NASA, ESA, Hubble; Processing & License: Judy Schmidt   
      
      Explanation: How was the unusual Red Rectangle nebula created? At the   
      nebula's center is an aging binary star system that surely powers the   
      nebula but does not, as yet, explain its colors. The unusual shape of   
      the Red Rectangle is likely due to a thick dust torus which pinches the   
      otherwise spherical outflow into tip-touching cone shapes. Because we   
      view the torus edge-on, the boundary edges of the cone shapes seem to   
      form an X. The distinct rungs suggest the outflow occurs in fits and   
      starts. The unusual colors of the nebula are less well understood,   
      however, and speculation holds that they are partly provided by   
      hydrocarbon molecules that may actually be building blocks for organic   
      life. The Red Rectangle nebula lies about 2,300 light years away   
      towards the constellation of the Unicorn (Monoceros). The nebula is   
      shown here in great detail as a reprocessed image from Hubble Space   
      Telescope. In a few million years, as one of the central stars becomes   
      further depleted of nuclear fuel, the Red Rectangle nebula will likely   
      bloom into a planetary nebula.   
      
                      Tomorrow's picture: jupiter-sized mess   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Amber Straughn Specific rights apply.   
                     NASA Web Privacy, Accessibility, Notices;   
                         A service of: ASD at NASA / GSFC,   
                              NASA Science Activation   
                                & Michigan Tech. U.   
      
   --- BBBS/Li6 v4.10 Toy-7   
    * Origin: The Rusty MailBox - Penticton, BC Canada (1:153/757)   
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