Artist's concept

The Cassini spacecraft profiles several features oriented north-south on Saturn's moon Tethys. A line of craters runs north to south near the center of the image: (from top) Phemius, Polyphemus, A...

This mosaic shows an updated global map of Saturn's icy moon Enceladus, created using images taken during Cassini spacecraft flybys. The map incorporates new images taken during flybys in October a...

Saturn's Rings, Cold and Colder September 2, 2004 Full-Res: PIA06425 The varying temperatures of Saturn's rings are depicted here in ...

This image of Iapetus was taken on Dec. 31, 2004. The spacecraft flew within about 123,000 kilometers (76,400 miles) of the icy moon. The image is one of several uploaded into the Cassini Raw Image...

Ligeia Mare, shown here in a false-color image from NASA's Cassini mission, is the second largest known body of liquid on Saturn's moon Titan.

                  Groovy Rings and Moons May 27, 2004   Full-Res: PIA05396                     The multitude of groove...

This image shows cratered terrain on dwarf planet Ceres, seen by NASA's Dawn spacecraft on June 15, 2016. The image is centered at approximately 3 degrees north latitude, 208 degrees east longitude.

Engineers inspect the small helicopter that will travel to the Red Planet with NASA's Mars 2020 rover.

Iapetus' Dark Side November 16, 2004 Full-Res: PIA06521 This image shows the dark, leading hemisphere of the mysterious moon Iapet...

This unprocessed image was captured by NASA's Cassini spacecraft during its Nov. 21, 2009 flyby of Saturn's moon Enceladus. It shows the ridges and fractures on the surface of the icy moon. The C...

Huygens probe jettison In this artist's rendition, the Huygens probe is finally ejected by the Cassini spacecraft and begins its 22-day coast phase toward Titan. Equipped with six scientific inst...

Saturn's planet-sized moon Titan displays a surprisingly flattened-looking north pole in this Cassini image. The cause of this flattening is not presently known. Titan's diameter is 5,150 kilometer...

In a splendid portrait created by light and gravity, Saturn's lonely moon Mimas is seen against the cool, blue-streaked backdrop of Saturn's northern hemisphere. Delicate shadows cast by the rings ...

Vortices mingle amidst other turbulent motions in Saturn's atmosphere in these two comparison images. The image on the right was taken about two Saturn rotations after the image on the left. Both ...

This poetic scene shows the giant, smog-enshrouded moon Titan behind Saturn's nearly edge-on rings. Much smaller Epimetheus (116 kilometers, or 72 miles across) is just visible to the left of Titan...

This Cassini spacecraft view of Pan in the Encke gap shows hints of detail on the moon's dark side, which is lit by saturnshine -- sunlight reflected off Saturn.

A single Huygens DISR image that shows two new features on the surface of Titan. A bright linear feature suggests an area where water ice may have been extruded onto the surface. Also visible are...

This map of the surface of Saturn's moon Iapetus (1,436 kilometers, or 892 miles across), generated from images taken by NASA's Voyager spacecraft, illustrates the imaging coverage planned during C...

This colorized mosaic from NASA's Cassini mission shows the most complete view yet of Titan's northern land of lakes and seas. Saturn's moon Titan is the only world in our solar system other than E...

This picture is a composite of 30 images from ESA's Huygens probe. They were taken from an altitude varying from 13 kilometers down to 8 kilometers when the probe was descending towards its landing...

Both of Saturn's F-ring shepherd moons are seen in this Cassini spacecraft view, which also features narrow ringlets in the Encke gap at left. Prometheus (102 kilometers, or 63 miles across) is ca...

This graphic illustrates the interior of Saturn's moon Enceladus. It shows warm, low-density material rising to the surface from within, in its icy shell (yellow) and/or its rocky core (red). A NA...

This false-color Cassini mosaic of Saturn's moon Enceladus captures in a single view, much of the frigid moon's diverse geology.

Sequence of images from Solar Dynamic Observatory (SDO) in 171 wavelength of the Venus transit, merged together to show path of Venus across the Sun. 

This image from NASA's Dawn spacecraft are located in asteroid Vesta's Floronia quadrangle, in Vesta's northern hemisphere. There are also many hummocky slumps of material around the crater's walls...