MSGID: 1:153/757.0 52c2dd8d   
   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 October 1   
      
                   Porphyrion: The Longest Known Black Hole Jets   
        Animation Credit: Science Communication Lab for Martijn Oei et al.,   
                                      Caltech   
      
      Explanation: How far can black hole jets extend? A new record was found   
      just recently with the discovery of a 23-million light-year long jet   
      pair from a black hole active billions of years ago. Dubbed Porphyrion   
      for a mythological Greek giant, the impressive jets were created by a   
      type of black hole that does not usually create long jets -- one that   
      is busy creating radiation from infalling gas. The featured animated   
      video depicts what it might look like to circle around this powerful   
      black hole system. Porphyrion is shown as a fast stream of energetic   
      particles, and the bright areas are where these particles are impacting   
      surrounding gas. The discovery was made using data from the Keck and   
      Mayall (DESI) optical observatories as well as LOFAR and the Giant   
      Metrewave Radio Telescope. The existence of these jets demonstrates   
      that black holes can affect not only their home galaxies but far out   
      into the surrounding universe.   
      
        Your Sky Surprise: What picture did APOD feature on your birthday?   
                                    (post 1995)   
                        Tomorrow's picture: big star cloud   
        __________________________________________________________________   
      
          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: 1/19 16/0 19/37 90/1 105/81 106/201 123/130 129/305 134/100   
   SEEN-BY: 142/104 153/135 143 148 151 757 6809 7083 7715 203/0 218/700   
   SEEN-BY: 218/840 221/1 6 242 360 226/30 227/114 229/110 114 206 307   
   SEEN-BY: 229/317 400 426 428 470 664 700 240/5832 266/512 280/5003   
   SEEN-BY: 280/5006 282/1038 291/111 301/1 320/119 219 319 2119 322/757   
   SEEN-BY: 322/762 335/364 341/66 342/200 396/45 423/81 460/58 633/280   
   SEEN-BY: 712/848 5020/400 5075/35   
   PATH: 153/757 221/6 1 320/219 229/426