| 
                                                                       Saturn's
                                                                      Tortured
                                                                      Moon 
                                                                      This
                                                                      false
                                                                      color
                                                                      image of
                                                                      Saturn's
                                                                      moon Mimas
                                                                      reveals
                                                                      variation
                                                                      in the
                                                                      composition
                                                                      and
                                                                      texture
                                                                      across its
                                                                      surface.
                                                                      During its
                                                                      approach
                                                                      to Mimas
                                                                      on Aug. 2,
                                                                      2005, the
                                                                      Cassini
                                                                      spacecraft’s
                                                                      narrow-angle
                                                                      camera
                                                                      obtained
                                                                      multi-spectral
                                                                      views of
                                                                      the moon
                                                                      from a
                                                                      range of
                                                                      228,000
                                                                      kilometers
                                                                      (142,500
                                                                      miles).
                                                                      This image
                                                                      is a color
                                                                      composite
                                                                      of
                                                                      narrow-angle
                                                                      ultraviolet,
                                                                      green,
                                                                      infrared
                                                                      and clear
                                                                      filter
                                                                      images,
                                                                      which have
                                                                      been
                                                                      specially
                                                                      processed
                                                                      to
                                                                      accentuate
                                                                      subtle
                                                                      changes in
                                                                      the
                                                                      moon’s
                                                                      surface
                                                                      materials.
                                                                      Herschel
                                                                      crater, a
                                                                      140-kilometer-wide
                                                                      (88-mile)
                                                                      impact
                                                                      feature
                                                                      with a
                                                                      prominent
                                                                      central
                                                                      peak, is
                                                                      visible in
                                                                      the upper
                                                                      right of
                                                                      the image.
                                                                      The
                                                                      Cassini-Huygens
                                                                      mission is
                                                                      a
                                                                      cooperative
                                                                      project of
                                                                      NASA, the
                                                                      European
                                                                      Space
                                                                      Agency,
                                                                      and the
                                                                      Italian
                                                                      Space
                                                                      Agency.  |