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This close-up view of the core of Saturn's narrow outlying F ring provides an unprecedented look at the fine scale structure of this highly perturbed ring. Like F Ring Dynamism, the structure seen...

Three large and impressive vortices, including two that appear to be interacting, are captured here as they swirl through Saturn's active southern latitudes. This view shows latitudes slightly to ...

This image from NASA's Dawn spacecraft of asteroid Vesta shows Rubria crater, with dark and bright material, offset from the center of the image. Rubria crater is located in Vesta's Gegania quadran...

Saturn's moon Enceladus brightly reflects sunlight before a backdrop of the planet's rings and the rings' shadows cast onto the planet. The Cassini spacecraft captured this snapshot during its fly...

The Cassini spacecraft looks toward the south pole of Enceladus, with a glimpse of Saturn's rings in the distance, during the spacecraft's close flyby Nov. 2, 2009. See Jet Blue to learn more abou...

Smog Moon November 15, 2004 Full-Res: PIA06520 Smog-enshrouded Titan shows itself to be a featureless orb in this Cassini image taken in v...

The change in Titan's haze layer is illustrated in this figure, derived from data obtained by NASA's Cassini spacecraft. The picture of Titan in panel a was taken on May 3, 2006, while the picture...

Rhea brushes the stormy face of Saturn, an airless ice orb against the feathery bands of a gas giant. Saturn's unilluminated rings are seen at upper right. Rhea is the second largest of Saturn's m...

The Cassini spacecraft takes an angled view toward Saturn, showing the southern reaches of the planet with the rings on a dramatic diagonal. North on Saturn is up and rotated 16 degrees to the lef...

This frame from an animated sequence of images shows northern terrain on the sunlit side of dwarf planet Ceres as seen by NASA's Dawn spacecraft on April 14 and 15, 2015.

The great eye of Saturn's moon Mimas, a 130-kilometer-wide (80-mile) impact crater called Herschel, stares out from the battered moon. Several individual ringlets within the F ring are resolved her...

This artist's concept shows NASA's Dawn spacecraft heading toward the dwarf planet Ceres. When Dawn arrives, it will be the first spacecraft to go into orbit around two destinations in our solar sy...

Energetic Atmosphere October 27, 2004 Full-Res: PIA06507 This stunning Cassini image shows that Saturn¿s atmosphere is an active and ...

What's that bright point of light in the outer A ring? It's a star, bright enough to be visible through the ring! 

When Galileo first observed Venus displaying a crescent phase, he excitedly wrote to Kepler (in anagram) of Venus mimicking the moon-goddess. He would have been delirious with joy to see Saturn and...

Kitty Joyner, electrical engineer, at Langley in 1952.

The Cassini spacecraft looks close at Saturn to frame a view encompassing the entire C ring. In the dark region closer to the planet lies the much dimmer D ring. The bright B ring wraps around the ...

The murky orange disk of Saturn's moon Titan glides past -- a silent, floating sphere transiting Saturn. Titan's photochemical smog completely obscures the surface in such natural color views. Its...

This specially processed composite view reveals a tremendous amount of structure in the northern polar atmosphere of Titan. The hazes in Titan's atmosphere are known to extend hundreds of kilometer...

Now, in southern summer, Saturn's shadow stretches across the sunlit southern surface of its rings. Saturn's moon Janus orbits just outside of the main rings and appears below them in this scene. J...

+View Video The bright crescent of Saturn's moon Enceladus slides past distant Rhea in this mutual event, or occultation, movie from Cassini. The movie was created from 40 original images taken o...

Interesting geological details on Enceladus can be seen in modest-resolution Cassini spacecraft views like this one. At bottom is the wrinkled and generally crater-free terrain near the moon's sout...

Commonly known as "The Little White House" at 1520 H Street, NW, in Washington, DC.

An ultraviolet view reveals comet Shoemaker-Levy 9's multiple impacts on Jupiter.

Rhea joins other Saturnian moons in casting a shadow on the rings in this image taken as the planet approached its August 2009 equinox. From the middle left to upper right of the image, the moon's...