Cassini Images Tethys

http://www.spaceref.com/news/viewsr.html?pid=14591

"Having passed closer to Tethys than the Voyager 2 spacecraft, Cassini has
returned the best-ever natural color view of this icy Saturnian moon.

As seen here, the battered surface of Tethys (1,060 kilometers, or 659 miles
across) has a neutral hue. The image here is a mosaic of two footprints.
Three images taken in the red, green and blue filters were taken to form a
natural color composite. The result reveals a world nearly saturated with
craters - many small craters lie on top of older, larger ones, suggesting
an ancient surface. At the top and along the boundary between day and
night, the moon's terrain has a grooved appearance. ..."