MSGID: 1:153/757@fidonet 6146ef74   
   PID: MBSE-FIDO 1.0.7.22 (GNU/Linux-x86_64)   
   CHRS: CP437 2   
   TZUTC: -0800   
   TID: MBSE-FIDO 1.0.7.22 (GNU/Linux-x86_64)   
                           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 w   
                       ritten by a professional astronomer.   
      
                                 2021 November 15   
      
                          Light Pillar over Volcanic Etna   
                      Image Credit & Copyright: Giancarlo Tinè   
      
      Explanation: What happening above that volcano? Something very unusual   
      -- a volcanic light pillar. More typically, light pillars are caused by   
      sunlight and so appear as a bright column that extends upward above a   
      rising or setting Sun. Alternatively, other light pillars -- some quite   
      colorful -- have been recorded above street and house lights. This   
      light pillar, though, was illuminated by the red light emitted by the   
      glowing magma of an erupting volcano. The volcano is Italy's Mount   
      Etna, and the featured image was captured with a single shot a few   
      hours after sunset in mid-June. Freezing temperatures above the   
      volcano's ash cloud created ice-crystals either in cirrus clouds high   
      above the volcano -- or in condensed water vapor expelled by Mount   
      Etna. These ice crystals -- mostly flat toward the ground but   
      fluttering -- then reflected away light from the volcano's caldera.   
      
                   Explore Your Universe: Random APOD Generator   
                          Tomorrow's picture: meteor flow   
        __________________________________________________________________   
      
          Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)   
               NASA Official: Phillip Newman Specific rights apply.   
                   NASA Web Privacy Policy and Important Notices   
                         A service of: ASD at NASA / GSFC   
                                & Michigan Tech. U.   
   --- MBSE BBS v1.0.7.22 (GNU/Linux-x86_64)   
    * Origin: The Rusty MailBox - Penticton, BC Canada (1:153/757)   
   SEEN-BY: 1/123 14/0 90/1 103/705 105/81 120/340 123/131 129/305 134/100   
   SEEN-BY: 153/0 105 135 757 6809 218/700 840 221/1 6 226/30 227/114   
   SEEN-BY: 227/702 229/424 426 428 664 700 240/1120 5832 249/206 317   
   SEEN-BY: 249/400 261/38 282/1038 301/1 113 812 317/3 322/757 335/364   
   SEEN-BY: 341/66 342/200 460/58 633/280 712/848 920/1 4500/1 5020/1042   
   SEEN-BY: 5058/104   
   PATH: 153/757 221/6 301/1 229/426