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                        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 April 2
    The featured image shows Jupiter in infrared light as captured by the
    James Webb Space Telescope. Visible are clouds, the Great Red Spot --
      appearing light in color -- and a prominent ring around the giant
      planet. Please see the explanation for more detailed information.

                   Jupiter and Ring in Infrared from Webb
   Image Credit: NASA, ESA, CSA, STScI; Processing & License: Judy Schmidt

   Explanation: Why does Jupiter have rings? Jupiter's main ring was
   discovered in 1979 by NASA's passing Voyager 1 spacecraft, but its
   origin was then a mystery. Data from NASA's Galileo spacecraft that
   orbited Jupiter from 1995 to 2003, however, confirmed the hypothesis
   that this ring was created by meteoroid impacts on small nearby moons.
   As a small meteoroid strikes tiny Metis, for example, it will bore into
   the moon, vaporize, and explode dirt and dust off into a Jovian orbit.
   The featured image of Jupiter in infrared light by the James Webb Space
   Telescope shows not only Jupiter and its clouds, but this ring as well.
   Jupiter's Great Red Spot (GRS) -- in comparatively light color on the
   right, Jupiter's large moon Europa -- in the center of diffraction
   spikes on the left, and Europa's shadow -- next to the GRS -- are also
   visible. Several features in the image are not yet well understood,
   including the seemingly separated cloud layer on Jupiter's right limb.

     Celestial Surprise: What picture did APOD feature on your birthday?
                                 (post 1995)
                       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.

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