Sunlight passing through the Cassini Division between Saturn's A and B rings sweeps across and illuminates the surface of the moon Janus in this movie captured shortly after Saturn's August 2009 equinox.
The small moon Mimas passes in front of the larger moon Rhea, which is partly obscured by Saturn's rings, in this movie from NASA’s Cassini spacecraft.
Sunlight passing through the Cassini Division between Saturn's A and B rings sweeps across and illuminates the surface of the moon Janus in this movie captured shortly after Saturn's August 2009 equinox.
A gaggle of moons parades around Saturn's rings in this movie from NASA’s Cassini spacecraft, featuring Rhea and three other moons.
The moon Tethys is joined by two smaller moons in this movie from NASA’s Cassini spacecraft.
This image shows the first flash of sunlight reflected off a lake on Saturn's moon Titan. The glint off a mirror-like surface is known as a specular reflection.
These two global images of Iapetus show the extreme brightness dichotomy on the surface of this peculiar Saturnian moon.
Three different false-color views of Saturn's moon Iapetus show the boundary of the global "color dichotomy" on the hemisphere of this moon facing away from Saturn.
This movie from Cassini, made possible only as Saturn's north pole emerged from winter darkness, shows new details of a jet stream that follows a hexagon-shaped path and has long puzzled scientists.
Saturn's moon Prometheus, orbiting near the streamer-channels it has created in the thin F ring, casts a shadow on the A ring in this image taken a little more than a week after the planet's August 2009 equinox.
An aurora, shining high above the northern part of Saturn, moves from the night side to the day side of the planet in this movie recorded by Cassini.
This unprocessed image was captured by NASA's Cassini spacecraft during its Nov. 21, 2009 flyby of Saturn's moon Enceladus.
This unprocessed image was captured by NASA's Cassini spacecraft during its Nov. 21, 2009 flyby of Saturn's moon Enceladus.
New data from NASA's Cassini spacecraft suggest that the shape of our solar system moving through the local Milky Way galaxy looks like a bubble -- or a rat -- traveling through a boa constrictor's belly.
NASA's Cassini spacecraft created this image of the bubble around our solar system based on emissions of particles known as energetic neutral atoms.
This view of Baghdad Sulcus on Saturn's moon Enceladus shows a wedge-shaped area between two prominent branches of Baghdad Sulcus.
Cassini captured this raw image on its Nov. 02, 2009, flyby of Enceladus.
This unprocessed image of Saturn's moon Enceladus appears to show separate jets spewing from the moon.
In this unprocessed image, sunlight brightens a crescent curve along the edge of Saturn's moon Enceladus and highlights its misty plume.
Titan’s golden, smog-like atmosphere and complex layered hazes appear to Cassini as a luminous ring around the planet-sized moon.