Io in Eclipse

A recent Hubble Space Telescope view reveals Uranus surrounded by its four major rings and by 10 of its 17 known satellites. 

As part of an engineering test, NASA’s OSIRIS-REx spacecraft captured this image of the Earth and Moon using its NavCam1 imager on January 17 from a distance of 39.5 million miles (63.6 million km)

This image of Aricia AV-L-11, 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.

This image, taken by NASA's Dawn spacecraft, shows the surface of dwarf planet Ceres from an altitude of 915 miles (1,470 kilometers). The image, with a resolution of 450 feet (140 meters) per pixe...

Opportunity turned its rover eyes skyward to observe clouds drifting overhead that look like cirrus clouds on Earth – featherlike formations composed mostly of ice crystals. 

These two views of Saturn's moon Titan exemplify how NASA's Cassini spacecraft has revealed the surface of this fascinating world. 

Geysers on Saturn's little moon Enceladus are throwing off Saturn's internal clock, making it hard to measure the length of the Saturn day. Credit: NASA/JPL

This false-color view from NASA's Cassini spacecraft gazes toward the rings beyond Saturn's sunlit horizon, where a thin haze can be seen along the limb.

Ceres' densely cratered landscape is revealed in this image taken by the framing camera aboard NASA's Dawn spacecraft. The craters show various degrees of degradation. The youngest craters have sha...

Nature is an artist, and this time she seems to have let her paints swirl together a bit.

Distant Rhea (right) poses here for the Cassini spacecraft, as Pandora hovers against Saturn's dark shadow on the rings. This image was taken in visible light with the Cassini spacecraft narrow-an...

This image of Ceres, taken by NASA's Dawn spacecraft, shows Sintana Crater (36 miles, 58 kilometers wide) at top, just right of center. The rim of a large crater called Zadeni (80 miles, 128 kilome...

Although the embedded moon Pan is nowhere to be seen, there is a bright clump-like feature visible here, within the Encke Division. Also discernable are periodic brightness variations along the out...

NASA's Dawn spacecraft after installation of high gain antenna.

This image of Ceres is part of a sequence taken by NASA's Dawn spacecraft on May 4, 2015, from a distance of 8,400 miles (13,600 kilometers).

Tethys' huge Odysseus Crater is brightly lit in the northern latitudes of this Saturnian moon in this Cassini spacecraft view. The crater is seen almost edge-on in the upper left of the image. See...

NASA's Dawn spacecraft took this image of Xevioso Crater on Oct. 15, 2015. Xevioso is located in the vicinity of Ahuna Mons, the tall, lonely mountain seen toward the bottom of the picture.

On July 11, 2005, the Cassini ultraviolet imaging spectrograph observed the star Bellatrix as it passed behind Enceladus, as seen from the spacecraft. The starlight was observed to dim when it got ...

Prometheus dips into the inner F ring at its farthest point from Saturn in its orbit, creating a dark gore and a corresponding bright streamer. Gores created during previous apoapsis (the name for ...

Tethys, like many moons in the solar system, keeps one face pointed towards the planet around which it orbits.

This image from NASA's Dawn spacecraft taken on June 13, 2016, shows cratered terrain to the west of Ahuna Mons. In this area there are chains of craters called Uhola Catenae.

Mawrth Vallis is one of the oldest valleys on Mars, formed in and subsequently covered by layered rocks, from beneath which it is now being exhumed.

This artist's concept shows NASA's Dawn spacecraft arriving at the dwarf planet Ceres, the most massive body in the asteroid belt. Dawn is the first mission to visit a dwarf planet.

+ View labeled version of the image Using images like the one presented here, Cassini imaging scientists have made a major finding about the mechanism powering the general circulation of Saturn. ...

This close-up look at Saturn's moon Janus reveals spots on the moon's surface which may be dark material exposed by impacts. If the dark markings within bright terrain are indeed impact features, t...