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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.   
      
                                   2023 April 6   
      
                              Terran 1 Burns Methalox   
                       Image Credit: Relativity / John Kraus   
      
      Explanation: Relativity's Terran 1 Rocket is mostly 3D-printed. It   
      burns a cryogenic rocket fuel composed of liquid methane and liquid   
      oxygen (methalox). In this close-up of a Terran 1 launch on the night   
      of March 22 from Cape Canaveral, icy chunks fall through the stunning   
      frame as intense blue exhaust streams from its nine Aeon 1 engines. In   
      a largely successful flight the inovative rocket achieved main engine   
      cutoff and stage separation but fell short of orbit after an anomaly at   
      the beginning of its second stage flight. Of course this Terran 1   
      rocket was never intended to travel to Mars. Still, the methane and   
      liquid oxygen components of its methalox fuel can be made solely from   
      materials found on the Red Planet. Methalox manufactured on Mars could   
      be used as fuel for rockets returning to planet Earth.   
      
                          Tomorrow's picture: Rigel wide   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Phillip Newman Specific rights apply.   
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                         A service of: ASD at NASA / GSFC,   
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                                & Michigan Tech. U.   
      
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