MSGID: 1:153/757.0 695b1f51   
   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.   
      
                                 2025 September 15   
      
                        Earth During a Powerful Solar Storm   
          Video Credit: NASA's SVS, SWRC, CCMC, SWMF; T. Bridgeman et al.   
      
      Explanation: Can our Sun become dangerous? Yes, sometimes. Every few   
      years our Sun ejects a scary-large bubble of hot gas into the Solar   
      System. Every hundred years or so, when the timing, location, and   
      magnetic field connections are just right, such a Coronal Mass Ejection   
      (CME) will hit the Earth. When this happens, the Earth not only   
      experiences dramatic auroras, but its magnetic field gets quickly   
      pushed back and compressed, which causes electric grids to surge. Some   
      of these surges could be dangerous, affecting satellites and knocking   
      out power grids -- which can take months to fix. Just such a storm --   
      called the Carrington Event -- occurred in 1859 and caused telegraph   
      wires to spark. A similar CME passed near the Earth in 2012, and the   
      featured animated video shows a computer model of what might have   
      happened if it had been a direct hit. In this model, the Earth's   
      magnetopause becomes so compressed that it went inside the orbit of   
      geosynchronous communication satellites.   
      
                       Tomorrow's picture: stellar cathedral   
        __________________________________________________________________   
      
          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)   
   SEEN-BY: 4/0 19/10 88/0 90/0 93/1 105/81 106/201 128/187 129/14 305   
   SEEN-BY: 134/100 153/135 143 148 151 757 6809 7083 7715 154/110 218/700   
   SEEN-BY: 218/840 221/1 6 360 226/30 227/114 229/110 206 307 317 400   
   SEEN-BY: 229/426 428 470 664 700 705 266/512 291/111 301/1 320/219   
   SEEN-BY: 322/757 335/364 341/66 200 342/200 396/45 460/58 633/280   
   SEEN-BY: 712/848 880/1 900/0 102 106 902/0 19 26 904/13 905/0 5019/40   
   SEEN-BY: 5020/400 5075/35   
   PATH: 153/757 221/6 341/66 902/26 229/426