Half-Rhea, in the darkness...

Original caption:"This half-lit view beautifully captures the ponderously old and cratered surface of Saturn's icy moon Rhea. The sunlit terrain shown here is on the moon's Leading Hemisphere, on the side of Rhea that always faces toward Saturn. North is up and rotated 20° to the left.

The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Aug. 21, 2005, at a distance of approximately 922.000 Km (about 573.000 miles) from Rhea and at a Sun-Rhea-spacecraft, or phase, angle of 88°. The image scale is 6 Km (about 4 miles) per pixel".