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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 September 21   
      
                   The Horsehead Nebula in Infrared from Hubble   
          Image Credit: NASA, ESA, Hubble; Processing: Alexandra Nachman   
      
      Explanation: While drifting through the cosmos, a magnificent   
      interstellar dust cloud became sculpted by stellar winds and radiation   
      to assume a recognizable shape. Fittingly named the Horsehead Nebula,   
      it is embedded in the vast and complex Orion Nebula (M42). A   
      potentially rewarding but difficult object to view personally with a   
      small telescope, the featured gorgeously detailed image was taken in   
      infrared light by the orbiting Hubble Space Telescope. The dark   
      molecular cloud, roughly 1,500 light years distant, is cataloged as   
      Barnard 33 and is seen above primarily because it is backlit by the   
      nearby massive star Sigma Orionis. The Horsehead Nebula will slowly   
      shift its apparent shape over the next few million years and will   
      eventually be destroyed by high energy starlight.   
      
        Your Sky Surprise: What picture did APOD feature on your birthday?   
                                    (post 1995)   
                          Tomorrow's picture: open space   
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          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
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                         A service of: ASD at NASA / GSFC,   
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