Hol(e)y Mimas! (natural colors; credits: Lunexit)

Caption NASA:"The sun's low angle near the Terminator throws the craters of Mimas into stark relief.
This view looks toward high Northern Latitudes on Mimas (approx. 396 Km, or about 246 miles across) from a position 72° North of the moon's Equator. The North Pole is in darkness at center.

The image was taken in visible green light with the Cassini Spacecraft narrow-angle camera on Aug. 4, 2008. The view was obtained at a distance of approx. 153.000 Km (such as about 95.000 miles) from Mimas and at a Phase Angle of 106°.
Image scale is 918 meters (3011 feet) per pixel".