NASA's Cassini spacecraft sent back this picture of the south polar region of Saturn's moon Enceladus.
Raw image of the Saturnian moon Hyperion.
An artist's sketch of the Cassini spacecraft's Nov. 30 flyby of Saturn's moon Enceladus.
The southern hemisphere of Saturn's moon Tethys.
Bright streaks of clouds on Saturn's moon, Titan. You can make out the rings of Saturn faintly etching the top of this image.
Saturn's moons Titan and Tethys. Titan, which is Saturn's largest moon, is the larger, hazy moon in the background. Tethys is the bright icy moon in the foreground.
The moon Mimas just before it went into shadow behind Saturn.
Another view of Titan.
A rare image of the 3-mile-wide moon Pallene, in front of the planet Saturn.
A bluish band around the icy equator of Saturn's moon Mimas. Scientists say that the band would suggest that the surface is being irradiated by high-energy electrons