Solar System Exploration
Release of Probe
December 7, 2004
Release of Probe
An artist's concept of NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft firing its maneuvering thrusters in order to maintain a safe altitude as it orbits the moon.
LADEE Fires Thrusters Artist's Concept
These images of Titan's south polar region were acquired during Cassini's first distant encounter with the smog-enshrouded moon on July 2, 2004. The spacecraft approached Titan at a distance of abo...
Tracing Surface Features on Titan -- Close-Ups
This view from NASA's Dawn spacecraft shows a portion of Mondamin Crater, an impact feature 78 miles (126 kilometers) in diameter, in the southern hemisphere of Ceres.
Dawn LAMO Image 59
In this infrared view, Saturn's cratered moon Tethys shows a faint, dark band across its equatorial region. Tethys is 1,071 kilometers (665 miles) across. North is up in this view, which shows t...
Although the Huygens probe has now pierced the murky skies of Titan and landed on its surface, much of the moon remains for the Cassini spacecraft to explore. Titan continues to present exciting pu...
New Titan Territory
Saturn's north pole hexagon, seen here in an image from the Cassini spacecraft, has been around for awhile. It was seen in Voyager images in the early 1980s, in ground-based telescopic images in th...
Unveiling the Hexagon
This image, taken by NASA's Dawn spacecraft on June 25, 2015, shows a portion of the northern hemisphere of dwarf planet Ceres from an altitude of 2,700 miles (4,400 kilometers).
Dawn Survey Orbit Image 39
Students and staffers gather outside the Science Center of Iowa in Des Moines. They smile and wave in anticipation of their deep-space portrait session with NASA's Cassini spacecraft during the Jul...
Iowans Wave at Saturn
This view of high southern latitudes on Saturn shows very linear clouds at top, usually indicative of stable prevailing winds, and two turbulent, swirling features farther south. It is possible tha...
Turbulent Down South
This image, taken by NASA's Dawn spacecraft on June 6, 2015, features a tall mountain on Ceres that is 4 miles (6 kilometers) high -- among the tallest features seen on Ceres to date.
Dawn Survey Orbit Image 52
The Cassini spacecraft studies the dynamics of Saturn's blustery cloud bands as spring approaches in the northern hemisphere. Janus casts its shadow onto Saturn at right, just above the curving s...
Racing 'Round the North
These raw, unprocessed images of Saturn's moon Dione were taken on Dec. 12, 2011, by NASA's Cassini spacecraft. Although Cassini obtained more detailed images on previous flybys of Dione, this was ...
Dione Rev 158 Raw Preview -- Image 5
This view from NASA's captured by NASA's Dawn spacecraft on Dec. 21,2015, shows the central complex of mountain peaks within Dantu Crater on Ceres. A patch of bright material is visible near lower ...
Dawn LAMO Image 13
On Dec. 13, 1972, scientist-astronaut Harrison H. Schmitt is photographed standing next to a huge, split lunar boulder during the third Apollo 17 extravehicular activity (EVA) at the Taurus-Littrow...
Apollo 17 Extravehicular Activity
This animation shows the Cassini spacecraft approaching Titan. The strips of data on the globe represent areas observed with the Cassini radar instrument. The pink swatch is the area observed by ...
Cassini Radar Titan Movie
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 was taken on September 9, 2015, and has a resolution...
Dawn HAMO Image 30
South Polar Features August 25, 2004 Full-Res: PIA06462 Wavy bands of clouds near Saturn's south pole dominate this ultraviolet image...
South Polar Features
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...
Close Titan Flyby 3, Image #1
Dione hangs in front of Saturn and its icy rings in this view, captured during Cassini's final close flyby of the icy moon.
Dione with Rings and Shadows
The scene shows a complex of craters in mid-southern latitudes on Ceres, just west of the peaks known as Niman Rupes. NASA's Dawn spacecraft took this image on June 15, 2016.
Dawn LAMO Image 138
Several distinct craters on Saturn's moon Hyperion can be seen here, as well as a protruding feature, perhaps a mountain, near the center. Hyperion is 266 kilometers (165 miles) across. The image...
This image of Titan's surface shows the entire scene obtained by the Cassini radar instrument on Sept. 7, 2006. It includes clear examples of the longitudinal dunes, as well as one of only three p...
Titan (T17) Viewed by Cassini's Radar -- Sept. 7, 2006
Using visible light, astronomers for the first time this century have detected clouds in the northern hemisphere of Uranus.
Hubble Spots Northern Hemispheric Clouds on Uranus
Saturn's restless clouds offer endless complexity, such as this small-scale repeating pattern upon which is superimposed a larger-scale wavelike modulation of the boundary between a bright zone and...
Pattern Upon Pattern
This is a color map of the composition of a portion of Saturn's moon Hyperion's surface about 75 kilometers (45 miles) on a side. In this map, blue shows the maximum exposure of frozen water, red ...
Hyperion's Kaleidoscope of Color
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