This global color mosaic of Triton, taken in 1989 by NASA's Voyager 2 shows Triton, the largest satellite of Neptune. Triton has the coldest surface known anywhere in the solar system; it is so cold that most of Triton's nitrogen is condensed as frost.
NASA's Voyager 2 acquired this black and white image of Triton, Neptune's largest satellite, during the night of Aug. 24-25, 1989. Triton's limb cuts obliquely across the middle of the image. The field of view is about 1,000 km (600 miles) across.
This image was returned by NASA's Voyager 2 spacecraft on July 3, 1989. The planet and its largest satellite, Triton, are captured in view; Triton appears in the lower right corner at about 5 o'clock relative to Neptune.
On Jan. 24, 1986, NASA's Voyager 2 returned the highest-resolution picture of Titania, Uranus' largest satellite. Abundant impact craters of many sizes pockmark the ancient surface; most prominent features are fault valleys that stretch across Titania.
This color image from NASA's Voyager 2 was reconstructed by making a computer composite of three black and white images taken through red, green, and blue filters. Details on Triton's surface unfold dramatically in this sequence of approach images.
Triton High Resolution View of Northern Hemisphere
This is one of the most detailed views of the surface of Triton taken by NASA's Voyager 2 on its flyby of the large satellite of Neptune early in the morning of Aug. 25, 1989. The picture was stored on the tape recorder and relayed to Earth later.
These images taken by NASA's Voyager 2 show changes in the clouds around Neptune's Great Dark Spot (GDS) over a four and one-half-day period. From top to bottom the images show successive rotations of the planet an interval of about 18 hours.
This false-color view of the rings of Uranus was made from images taken by NASA's Voyager 2 on Jan. 21, 1986. All nine known rings are visible here; the somewhat fainter, pastel lines seen between them are contributed by the computer enhancement.
In this image from NASA's Voyager wide-angle image taken on Aug. 23 1989, the two main rings of Neptune can be clearly seen. In the lower part of the frame the originally announced ring arc, consisting of three distinct features, is visible.
This image of Neptune's south polar region was obtained by NASA's Voyager on Aug. 23, 1989. The image shows the discovery of shadows in Neptune's atmosphere, shadows cast onto a deep cloud bank by small elevated clouds.
On Jan. 24, 1986, NASA's Voyager 2 obtained this color picture of the Uranian moon, Ariel. Most of the visible surface consists of relatively intensely cratered terrain transected by fault scarps and fault-bounded valleys (graben).
This image of Neptune was taken by NASA's Voyager 2's wide-angle camera; small trails of similar clouds trending east to west and large scale structure east of the Great Dark Spot all suggest that waves are present in the atmosphere and play a large role
This natural color image of the limb of Triton was taken early in the morning of Aug. 25 1989, when the Voyager 2 spacecraft was at a distance of about 210,000 kilometers (128,000 miles) from the icy satellite.