Io Color Eclipse

More than 100 asteroids were captured in this view from NASA's Wide-field Infrared Survey Explorer, or WISE, during its primary all-sky survey.

This raw, unprocessed image of Saturn's moon Enceladus was taken during Cassini's Nov. 6, 2011, flyby which passed within about 300 miles (500 kilometers) of the moon's surface. This encounter wa...

This image from NASA's Dawn spacecraft shows areas of dark material which are both associated with impact craters and between these craters on asteroid Vesta. Dark material is seen cropping out of ...

This image of Mamilia AV-L-06, from the atlas of the giant asteroid Vesta, was created from images taken as NASA's Dawn mission flew around the object, also known as a protoplanet.

A fleet of small moons patrols the outskirts of Saturn's icy rings. The shepherd moons Prometheus (102 kilometers, or 63 miles across) and Pandora (84 kilometers, or 52 miles across) are seen resp...

Two of Saturn's small moons can be seen orbiting beyond the planet's thin F ring in this Cassini spacecraft image. Pandora (81 kilometers, or 50 miles across) is on the left, and Epimetheus (113 k...

This mosaic taken by NASA's Mars Curiosity rover looks uphill at Mount Sharp, which Curiosity has been climbing. Spanning the center of the image is an area with clay-bearing rocks that scientists ...

These images from NASA's Dawn spacecraft are located in asteroid Vesta's Numisia quadrangle, in Vesta's northern hemisphere.

This image shows the location of an area known as Sotra Facula on Saturn’s moon Titan. The black and white swaths show data obtained by the radar instrument on NASA’s Cassini spacecraft. The swaths...

These views show surface features and color variation on the Trojan moon Telesto. The smooth surface of this moon suggests that, like Pandora, it is covered with a mantle of fine, dust-sized icy ma...

This image from NASA's Dawn mission shows topography of the giant asteroid Vesta and a map of Vesta's gravity variations.

NASA's Cassini spacecraft successfully completed its Oct. 1 flyby of Saturn's moon Enceladus, capturing these raw, unprocessed images of the moon and its dramatic plumes of water vapor and ice. Th...

These images and movie show the distribution of the organic molecule acetylene at the north and south poles of Jupiter, based on data obtained by NASA's Cassini spacecraft in early January 2001. It...

This excellent view of the faint E ring -- a ring feature now known to be created by Enceladus -- also shows two of Saturn's small moons that orbit within the ring, among a field of stars in the ba...

During Cassini's Oct. 9 flyby, the spacecraft's fields and particles instruments will venture deeper into the plume than ever before, directly sampling the particles and gases. The emphasis here is...

This wide angle field-of-view artist's rendering shows the surface of Pandora, one of the shepherds of the F ring, a thin wispy band of material just on the outside of the main rings of Saturn. The...

This mosaic of Saturn's rings was acquired by Cassini's visual and infrared mapping spectrometer instrument on Sept. 15, 2006, while the spacecraft was in the shadow of the planet looking back towa...

NASA's Dawn spacecraft obtained this image of the surface of asteroid Vesta with its framing camera on August 11, 2011. It was taken through the camera's clear filter. The image has a resolution of...

The moon Mimas casts a shadow and creates a single blemish on the kingly crescent of Saturn. Mimas is not shown in this view, but its shadow can be seen on the planet just north of the rings and t...

These images from NASA's Dawn spacecraft show part of the grooved terrain in asteroid Vesta's Pinaria quadrangle, which is in the southern hemisphere. Large-scale grooves and depressions can be see...

This image, taken by NASA's Dawn spacecraft, shows a portion of Ceres at mid-latitudes from an altitude of 915 miles (1,470 kilometers). The image, with a resolution of 450 feet (140 meters) per pi...

This Magellan image mosaic shows one of the largest impact craters known to exist on Venus.

Images taken during the Cassini spacecraft's orbital insertion on June 30 show definite compositional variation within the rings.

This image was taken during Cassini's third close approach to Titan on Feb. 15, 2005. The image was taken with the Cassini spacecraft narrow angle camera, through a filter sensitive to wavelengths...

The Cassini spacecraft, with the Huygens probe seen on the right in this photo, sits atop a Titan IVB/Centaur expendable launch vehicle at Launch Pad 40 at the Cape Canaveral Air Station. The space...