Artist's concept

This image shows an updated map of Saturn's icy moon Enceladus, generated by the Cassini imaging team. The map incorporates new images taken in 2008, with better image processing techniques. Comp...

Bright spokes grace Saturn's B ring in this Cassini spacecraft snapshot that also features a couple of the planet's moons large and small. Dione (1,123 kilometers, or 698 miles across) can be seen...

The very faint shadow of the moon Atlas stretches across the top left of this image while a wave undulates across the A ring in the lower right of this image, which was taken around the time of Sat...

This image is the fourth skeet-shoot footprint taken during Cassini's very close flyby of Enceladus on Aug. 11, 2008. Cairo Sulcus is shown crossing the upper left portion of the image. An unname...

Dione reveals its past via contrasts in this view from NASA's Cassini spacecraft. The features visible here are a mixture of tectonics -- the bright, linear features -- and impact cratering -- the ...

Craters appear well defined on icy Rhea in front of the hazy orb of the much larger moon Titan in this Cassini spacecraft view of these two Saturn moons. See Haze Layers on Titan and Orange and Bl...

NASA's Dawn spacecraft obtained this image of a dark band on asteroid Vesta with its framing camera on August 19, 2011. The image has a resolution of about 260 meters per pixel.

Mimas and the Rings October 26, 2004 Full-Res: PIA06506 This Cassini image shows a nearly half-full Mimas (a moon that is 398 kilo...

This image. taken on June 12, 2016, from NASA's Dawn spacecraft shows dimly lit, cratered terrain on Ceres. Bright streaks of material are visible on one section of the crater wall (at bottom), and...

This composite image is a simulated true color image of part of asteroid Vesta's northern region, which contains the 'snowman craters.' Images such as these greatly help the process of understandin...

Cassini's radar mapper has obtained stereo views of close to 2 percent of Titan's surface during 19 flybys over the last five years. The process of making topographic maps from images is just gett...

This view from NASA's Cassini spacecraft showcases some of the amazingly detailed structure of Saturn's rings.

This image from NASA's Dawn spacecraft shows four large impact craters close to one another on Vesta's surface. Interestingly, each of these four has a distinct preservation state.

Views like this one from Cassini are helping scientists unravel some of the mysteries of Saturn's complex atmosphere. The turbulent, wavy pattern at the bottom of the image has the appearance of a...

High in the Titan Atmosphere October 25, 2004 Full-Res: PIA06120 High-altitude haze and perhaps cloud layers are visible in t...

Artist's graphic of the asteroid belt, part of Dawn's Mission Art series.

The newly assembled Cassini Saturn probe undergoes vibration and thermal testing at the JPL facilities in Pasadena, California. It is subjected to weeks of "shake and bake" tests that imitate the f...

This celestial circle of light is produced by the glow of sunlight scattered through the periphery of Titan's atmosphere as the Sun is occulted by Titan. It is the sum of all the sunsets and sunris...

Evoking the haunting beauty of Earth's Moon, a crescent Enceladus appears in the skies around Saturn. Lit terrain seen here is on the Saturn-facing hemisphere of Enceladus. North on Enceladus is u...

The Cassini spacecraft and Huygens probe begin their seven-year journey to the r inged planet. The successful launch of Cassini aboard a Titan IVB/Centaur occured at 4:43 a.m. EDT , October 15, 199...

A pair of Saturn's small, icy satellites accompany the planet's rings in this Cassini spacecraft snapshot. Janus (179 kilometers, or 111 miles across) is farthest from Cassini here and occupies th...

Tiny Daphnis appears as a bright dot in the Keeler Gap next to shadows cast by the moon and the edge waves it has created in the A ring in this image taken before Saturn's August 2009 equinox. Dap...

Saturn's icy, impact-riddled moon Mimas slips briefly in front of Saturn's moon Janus in this movie from Cassini. Mimas is 397 kilometers (247 miles) across, while Janus is 181 kilometers (113 mil...

Thermal infrared images of Saturn from the Very Large Telescope Imager and Spectrometer for the mid-Infrared (VISIR) instrument on the European Southern Observatory's Very Large Telescope, on Cerro...

This image from NASA's Dawn spacecraft shows Dantu Crater. The numerous bright spots found across the crater suggest bright material may be just below the surface, exposed through small impacts and...