Janus (possible True Colors; credits: Lunexit)

Caption NASA:"This shadowy scene is one of the Cassini Spacecraft's closest views of Saturn's moon Janus.
The slopes of some craters here display hints of the darker material better seen on Epimetheus. A bright linear feature runs up the wall of the large crater at bottom center.
This view looks toward Southern Latitudes on Janus (about 179 kilometers, or 111 miles across). North is toward the top of the image and rotated 58° to the right.

The image was taken in visible light with the Cassini Spacecraft narrow-angle camera on June 30, 2008. The view was obtained at a distance of approx. 33.000 Km (such as about 21.000 miles) from Janus and at a Sun-Janus-Spacecraft, or Phase, Angle of 120°. Image scale is roughly 200 meters (656 feet) per pixel".