MSGID: 1:153/757.0 b2e6737b   
   TZUTC: -0700   
   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.   
      
                                  2024 August 13   
      The edge of the Earth is seen from space at night. The curving horizon   
      is tinted green but a red and blue jet rises from left. Please see the   
                    explanation for more detailed information.   
      
                  Giant Jet from the International Space Station   
       Image Credit: NASA, Expedition 71 Crew, JSC, ESRS, Matthew Dominick;   
                            Processing: Simeon Schmau+f   
      
      Explanation: What's that on the horizon? When circling the Earth on the   
      International Space Station early last month, astronaut Matthew   
      Dominick saw an unusual type of lightning just beyond the Earth's edge:   
      a gigantic jet. The powerful jet appears on the left of the featured   
      image in red and blue. Giant jet lightning has only been known about   
      for the past 23 years. The atmospheric jets are associated with   
      thunderstorms and extend upwards towards Earth's ionosphere. The lower   
      part of the frame shows the Earth at night, with Earth's thin   
      atmosphere tinted green from airglow. City lights are visible,   
      sometimes resolved, but usually creating diffuse white glows in   
      intervening clouds. The top of the frame reveals distant stars in the   
      dark night sky. The nature of gigantic jets and their possible   
      association with other types of Transient Luminous Events (TLEs) such   
      as blue jets and red sprites remains an active topic of research.   
      
              Growing Gallery: Perseid Meteor Shower 2024 and Aurorae   
                         Tomorrow's picture: star factory   
        __________________________________________________________________   
      
          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.   
      
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