MSGID: 1:153/757.0 c2af6143
TZUTC: -0800
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.

                               2026 January 20
    A big ball that is mostly yellow is shown. The ball has many circular
     and irregular regions that are different colors, typically brown or
   olive green. Please see the explanation for more detailed information.

                              Io in True Color
                  Image Credit: NASA, JPL, Galileo Project

   Explanation: The strangest moon in the Solar System is bright yellow.
   The featured picture, an attempt to show how Io would appear in the
   "true colors" perceptible to the average human eye, was taken in 1999
   July by the Galileo spacecraft that orbited Jupiter from 1995 to 2003.
   Io's colors derive from sulfur and molten silicate rock. The unusual
   surface of Io is kept very young by its system of active volcanoes. The
   intense tidal gravity of Jupiter stretches Io and damps wobbles caused
   by Jupiter's other Galilean moons. The resulting friction greatly heats
   Io's interior, causing molten rock to explode through the surface. Io's
   volcanoes are so active that they are effectively turning the whole
   moon inside out. Some of Io's volcanic lava is so hot it glows in the
   dark.

                       Tomorrow's picture: open space
     __________________________________________________________________

       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: 1/19 100 16/0 19/10 37 105/81 106/201 123/130 128/187 129/14
SEEN-BY: 129/305 134/100 142/104 153/135 143 148 151 757 6809 7083
SEEN-BY: 153/7715 154/110 201/0 203/0 218/700 840 221/1 6 360 226/30
SEEN-BY: 227/114 229/110 112 134 206 307 317 400 426 428 470 664 700
SEEN-BY: 229/705 240/5832 266/512 280/5003 5006 291/111 301/1 320/119
SEEN-BY: 320/219 319 2119 322/757 762 335/364 341/66 342/200 396/45
SEEN-BY: 423/81 460/58 633/280 712/848 902/26 5020/400 5075/35
PATH: 153/757 221/6 1 320/219 229/426