As Titan Turns

Mind the Gap December 2, 2004 Full-Res: PIA06534 An intriguing knotted ringlet within the Encke Gap is the main attraction in this Ca...

This view, like The Hand of Prometheus, shows Prometheus with a streamer it has created in the inner edge of the F ring. Prometheus comes close to the inner edge of the ring once per orbit, pert...

The Cassini spacecraft looks toward the high north on heavily cratered Mimas. The unmistakable Herschel impact crater is seen at lower left. Lit terrain seen here is on the anti-Saturn side of Mim...

Saturn's impact-pummeled Hyperion stares back at Cassini in this six-image mosaic taken during the spacecraft's close approach on Sept. 26, 2005. This up-close view shows a low density body blaste...

Like a shepherd guarding his sheep, Prometheus keeps a lonely watch over the F ring. Gravitational interactions between the ring and its shepherd moons, Prometheus (53 miles, or 86 kilometers acro...

Citizen scientist Rick Lundh created this abstract Jovian artwork using data from the JunoCam imager on NASA’s Juno spacecraft.

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. The "color dichotomy," which has...

This set of images exposes details on small and crumpled-looking Helene. Large portions of this Trojan moon of Dione appear to have been blasted away by impacts. Cassini passed within 50,000 kilom...

The northern polar region of Saturn's moon Tethys seen in this Cassini flyby image is a ponderously ancient surface. Above the prominent peaked crater Telemachus are the remnants of a very old cra...

This image from NASA's Dawn spacecraft shows a part of the surface of asteroid Vesta, which is mantled (covered) by an ejecta blanket, evident as smoothly textured surface visible across the image.

NASA's Cassini spacecraft looks toward the night side of Saturn's largest moon and sees sunlight scattering through the periphery of Titan's atmosphere and forming a ring of color.

This infrared view looks toward middle to high northern latitudes on Saturn, revealing entrancing meanders in the clouds. The cloud patterns transition from puffier looking in the south -- possibly...

This artist's conception shows Titan's surface with Saturn appearing dimly in the background through Titan's thick atmosphere of mostly nitrogen and methane. The Cassini spacecraft flies overhead w...

This image shows a close-up of long, narrow, sinuous gullies that scientists on NASA's Dawn mission have found on the giant asteroid Vesta. The crater shown here is called Cornelia.

A four-panel frame shows a section of Jupiter's north equatorial belt viewed by NASA's Cassini spacecraft at four different wavelengths, and a separate reference frame shows the location of the b...

This image from NASA's Dawn spacecraft shows a detailed view of three craters, informally nicknamed 'Snowman' by the camera's team members.

The bright arc of material in Saturn's G ring is seen here as it rounds the ring's edge, or ansa. The ring arc orbits Saturn along the inner edge of the G ring. Cassini spacecraft scientists think...

U.S. Air Force 1st Lt. Kristina Williams, weather officer, 30th Space Wing, Vandenberg Air Force Base, right, discusses NASA's InSight mission during a pre-launch media briefing.

The soft appearance of Dione's wispy terrains belies their true nature. They are, in fact, complex systems of crisp, braided fractures that cover the moon's trailing hemisphere. (See Dione's Surpr...

The Cassini spacecraft catches Janus joining other Saturnian moons in the equinox shadow-casting party. As Saturn approaches its August 2009 equinox, the planet's moons cast shadows onto the rings...

This close view of Rhea prominently shows two large impact basins on the ancient and battered moon. The great age of these basins is suggested by the large number of smaller craters that are overpr...

The shadows of two moons appear on Saturn, above and below the plane of the planet's rings. North on Saturn is up in this image, and the shadow of Dione (1,123 kilometers, or 698 miles across) can...

Sunlight strikes the terminator (the boundary between day and night) region on Saturn's moon Iapetus at nearly horizontal angles, making visible the vertical relief of many features. This view is ...

The Sun blew out a coronal mass ejection along with part of a solar filament over a three-hour period (Feb. 24, 2015). 

This image, taken by NASA's Dawn spacecraft, shows dwarf planet Ceres from an altitude of 2,700 miles (4,400 kilometers). The image, with a resolution of 1,400 feet (410 meters) per pixel, was take...