Great Dark Spot

The Cassini spacecraft awaits placement of its payload fairing at Launch Pad 40 at the Cape Canaveral Air Station. Cassini is a cooperative project of NASA, the European Space Agency and the Ita...

These apparent brightness and topography images from NASA's Dawn spacecraft are located in asteroid Vesta's Bellicia quadrangle, in Vesta's northern hemisphere.

RTG fit and test

Dark spokes dance around Saturn's B ring in this series of movies comprised of images taken with Cassini's wide-angle camera. This animation is a concatenation of spoke movies acquired by NASA¹s C...

Saturn's biggest and brightest moons are visible in this portrait by Cassini. Titan (5,150 kilometers, or 3,200 miles across) is Saturn's largest moon and appears at the lower left. Note that some...

This image from NASA's Dawn spacecraft shows Tarpeia crater, located in Vesta's Rheasilvia quadrangle, near asteroid Vesta's south pole. Tarpeia has a sharp, fresh rim surrounding it.

Cassini captured the near-infrared images in this mosaic on June 29, 2017, as it raced toward the gap between Saturn and its rings. 

These are two raw, or unprocessed, images taken by the Cassini spacecraft during its close flyby of Saturn's moon Iapetus on September 10. For more information about the Cassini-Huygens mission vis...

This view from NASA's Dawn spacecraft shows the Cerean terrain. The crater in the upper left corner displays smooth, relatively crater-free walls and small spurs of compacted material.

The surface of Saturn's moon Dione is rendered in crisp detail against a hazy, ghostly Titan. A portion of the ''wispy'' terrain of Dione's trailing hemisphere can be seen on the right (see Wispy ...

As millions of people observed the total lunar eclipse on October 8, 2014, MESSENGER was also watching from Mercury.

This image from NASA's Dawn spacecraft shows craters in various states of degradation on the asteroid Vesta.

Stormy Weather November 12, 2004 Full-Res: PIA06519 This Cassini view shows a bright storm that appeared in Saturn's southern hemisphe...

Janus and Tethys demonstrate the main difference between small moons and large ones.

This view from NASA's Cassini spacecraft shows a wave structure in Saturn's rings known as the Janus 2:1 spiral density wave. 

This artist's rendering shows a cross-section of the surface and subsurface of Saturn's moon Titan, with a possible model for the structure of underground liquid reservoirs there.

Thin lineaments cross back and forth on the surface of Saturn's moon Rhea in this equatorial view. These lines can be seen intersecting craters on Rhea (1528 kilometers, 949 miles across). This vi...

NASA's Cassini spacecraft spied this tight trio of craters as it approached Saturn's icy moon Enceladus for a close flyby on Oct. 14, 2015.

This still from a movie shows an image taken by NASA's Dawn spacecraft layered on a digital terrain model of an unusual hill containing a dark-rayed impact crater and nearby dark deposit on asteroi...

The head of Saturn's huge northern storm is well established in this view captured early in the storm's development by NASA's Cassini spacecraft in late 2010. Saturn's atmosphere and its rings are...

Cassini looks toward Tethys and its great crater Odysseus, while at the same time capturing veiled Titan in the distance (at left). Titan (5,150 kilometers, or 3,200 miles across) is shrouded in a...

Cassini's radar mapper has obtained stereo views of close to 2 percent of Titan's surface during 19 flybys over the last five years. The process of making topographic maps from images is just gett...

Saturn's shepherd moon Prometheus hovers between the A and F rings as if suspended on an invisible thread, while bright clouds drift in Saturn's atmosphere approximately 130,000 kilometers (81,000 ...

Saturn's rings obscure part of Titan's colorful visage in this image from NASA's Cassini spacecraft.

About a month after Saturn's August 2009 equinox, shadows continue to grace the planet's rings. Pan (28 kilometers, or 17 miles across) orbits in the Encke Gap, which runs through the center of th...