High-Altitude Clouds

These composite images from NASA's Dawn spacecraft show three views of a terrain with ridges and grooves near Aquilia crater in the southern hemisphere of the giant asteroid Vesta.

+ Video Launch Page The window at left shows the field-of-view of the prime instrument during Cassini's flyby Mar. 12, 2008, The right-hand windows show the view from the instrument boresights.

The European Space Agency has set up a special gallery for the more than 350 raw images snapped by the Huygens probe as it descended to Titan on Jan. 14, 2005. Visit the gallery at: http://esamulti...

This image of a fracture network in Occator Crater on Ceres was obtained by NASA's Dawn spacecraft on July 1, 2018 from an altitude of about 29 miles (46 kilometers).

Life is hard for a little moon. Epimetheus, seen here with Saturn in the background, is lumpy and misshapen, thanks in part to its size and formation process. Epimetheus did not form with all of th...

This incredible, high resolution view of Saturn's moon Dione was taken during Cassini's first close approach to the icy moon on Dec. 14, 2004. The view shows linear, curving features within the reg...

This artist's concept envisions what hydrocarbon ice forming on a liquid hydrocarbon sea of Saturn's moon Titan might look like. A new model from scientists on NASA's Cassini mission suggests that ...

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 view from NASA's Dawn spacecraft captures gently curving canyons amid cratered plains on Ceres. The image is centered at approximately 31 degrees south latitude, 259 degrees east longitude, ju...

This view from NASA's Cassini spacecraft shows terrain on Saturn's moon Dione that is entirely lit by reflected light from Saturn, called Saturnshine.

Peering over the shoulder of giant Saturn, through its rings, and across interplanetary space, NASA's Cassini spacecraft spies the bright, cloudy terrestrial planet, Venus. 

Our solar system features eight planets, seen in this artist's diagram.

On May 28, the Cassini spacecraft will fly by Saturn's moon Titan in its last flyby of the original four-year tour, but Cassini’s exploration of Saturn will continue for two more years. This flyby ...

This enhanced-color mosaic of Saturn's icy moon Tethys shows a range of features on the moon's trailing hemisphere. 

This color view shows two of the largest craters on Saturn's icy moon Tethys: Odysseus in the northern hemisphere and Melanthius in the south. The moon's surface grows notably darker northward of t...

Less than 20 minutes after Cassini's close approach to Titan on March 31, 2005, its cameras captured this view of Saturn through Titan's upper atmosphere. The northern part of Saturn's disk can be ...

This graphic of an enhanced color image from NASA's Dawn spacecraft shows a theoretical path of a water molecule on Ceres.

NASA's Dawn spacecraft took this image of dwarf planet Ceres from about 25,000 miles (40,000 kilometers) away on Feb. 25, 2015. Ceres appears half in shadow because of the current position of the s...

Unusual arc-shaped, reddish streaks cut across the surface of Saturn's ice-rich moon Tethys in this enhanced-color mosaic.

This is a montage of New Horizons images of Jupiter and its volcanic moon Io, taken during the spacecraft’s Jupiter flyby in early 2007.

These three enhanced-color views of an equatorial region on Saturn’s moon Rhea were made from data obtained by NASA’s Cassini spacecraft. The colors have been enhanced to show colorful splotches an...

+ Annotated version Five images of Saturn's rings, taken by NASA's Cassini spacecraft between 2009 and 2012, show clouds of material ejected from impacts of small objects into the rings. Clockwise...

NASA's Mercury-bound Mariner 10 on the launch pad in 1973.

The Cassini spacecraft looks toward Saturn's tiny moon Aegaeon within the G-ring arc. The moonlet Aegaeon (formerly known as S/2008 S 1) can't be seen in this image, but it orbits in the bright ar...

Epimetheus (116 kilometers, or 72 miles across, at right) and Janus (181 kilometers, or 113 miles across, at left) are lit here by reflected "greylight" from Saturn. The Sun brightens only thin sli...