Like graffiti sprayed by an unknown artist, unexplained reddish streaks arc across the surface of Tethys. The origin of the features and their reddish color is a mystery.

On March 10, 2006, the probe found evidence of liquid water reservoirs that erupt in geysers on Enceladus. On September 20, 2006, it photographed a previously undiscovered planetary ring, outside the brighter main rings and inside the G and E rings. In March 2007, it sent back images of hydrocarbon seas near Titan's north pole, the largest of which is almost the size of the Caspian Sea.

Pan is a small, walnut-shaped moon approximately 35 kilometres across and 23 km wide that orbits within the Encke Gap in Saturn's A Ring. It is a ring shepherd and is responsible for keeping the Encke Gap free of ring particles.