NASA
NASA Science
Solar System Exploration
Skip Navigation
Solar System
Our Solar System
Sun
Kuiper Belt
Oort Cloud
Beyond Our Solar System
Our Solar System
Sun
Kuiper Belt
Oort Cloud
Beyond Our Solar System
Planets
About Planets
PLANETS
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
DWARF PLANETS
Pluto
Ceres
Makemake
Haumea
Eris
HYPOTHETICAL
Planet X
About Planets
PLANETS
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
DWARF PLANETS
Pluto
Ceres
Makemake
Haumea
Eris
HYPOTHETICAL
Planet X
Moons
About Moons
BY DESTINATION
Earth (1)
Mars (2)
Jupiter (79)
Saturn (61)
Uranus (27)
Neptune (14)
Pluto (5)
About Moons
BY DESTINATION
Earth (1)
Mars (2)
Jupiter (79)
Saturn (61)
Uranus (27)
Neptune (14)
Pluto (5)
Asteroids, Comets & Meteors
About Asteroids, Comets & Meteors
BY TYPE
Asteroids
Meteors & Meteorites
Comets
About Asteroids, Comets & Meteors
BY TYPE
Asteroids
Meteors & Meteorites
Comets
More
News
Resources
Raw Images
People
Missions
Science Goals
Technology Reports
Kids
Interactives
Basics of Space Flight
Solar System Ambassadors
Scientist for a Day
News
Resources
Raw Images
People
Missions
Science Goals
Technology Reports
Kids
Interactives
Basics of Space Flight
Solar System Ambassadors
Scientist for a Day
Orrery
Resources
RTG fit and test
Published:
December 16, 2004
RTG fit and test
ENLARGE
Related
This map of Ceres, constructed from data collected by NASA's Dawn spacecraft, shows the dwarf planet's surface with features that have been named as of August 14, 2015.
Ceres Map With Crater Names -- August 2015
Bright spokes and the shadow of a moon grace Saturn's B ring in this Cassini spacecraft image. Spokes are radial markings scientists continue to study, and they can be seen here stretching from th...
Bright Spokes, Dark Shadow
In this 30 second exposure, a meteor streaks across the sky during the annual Perseid meteor shower Friday, Aug. 12, 2016 in Spruce Knob, West Virginia.
Perseids Meteor 2016
Saturn's rings obscure part of Titan's colorful visage in this image from NASA's Cassini spacecraft.
Obscured by Rings
Sand dunes on the slopes of Nectaris Montes within Coprates Chasma, which is part of Mars' giant Valles Marineris canyon system, as seen by the HiRISE camera aboard NASA's Mars Reconnaissance Orbit...
Dunes in Nectaris Montes
Piercing the ubiquitous layer of smog enshrouding Titan, these images from the Cassini visual and infrared mapping spectrometer reveals an exotic surface covered with a variety of materials in the ...
Titan's surface revealed
Jet Propulsion Laboratory (JPL) technicians reposition and level the Cassini orbiter in the Payload Hazardous Servicing Facility at KSC in July after stacking the craft’s upper equipment module on ...
Cassini On the Level
Titan Map July 3, 2004 Full-Res: PIA06411 This mosaic of images taken by the Cassini spacecraft as it approached Saturn shows the...
Titan Map
This Kepler image of Earth’s reflection as it slipped past the telescoipe's field of view was so extraordinarily bright that it created a saber-like saturation bleed across the instrument’s sensors...
Earth from 94 Million Miles Away
These images from NASA's Dawn spacecraft are located in asteroid Vesta's Oppia quadrangle, just south of Vesta's equator; Claudia was chosen to anchor the coordinate system for Vesta used in the sc...
HAMO and LAMO Images of Claudia Crater
A section of Saturn's perturbed F ring displays kinks in its bright strands. At left, edge waves in the Encke Gap, caused by the presence of Pan, can be seen, along with two faint ringlets. This v...
Bright Strands
This image of Ceres from NASA's Dawn spacecraft shows hummocky terrain -- a surface covered in low, rounded hills -- with numerous impact craters of varying sizes.
Dawn HAMO Image 63
Seasonal changes in the atmosphere of Saturn's largest moon are captured in this natural color image, which shows Titan with a slightly darker top half and a slightly lighter bottom half. Titan's ...
Two Halves of Titan
NASA's Dawn asteroid lithograph of Eros and other asteroids.
Asteroid Lithograph of Eros and Other Asteroids
As Prometheus pulls away from an encounter with Saturn's F ring, its immediate effects on the ring material are clear. The moon has pulled toward it a faint streamer of material from the inner, fla...
Opening a Channel
Titan's First Close-Up October 26, 2004 This image is one of the closest ever taken of Saturn's hazy moon Titan. It was captured by Cassini's imaging scien...
Titan's First Close-Up
The bright arc within Saturn's G ring is shown truncated by the shadow of the planet at the bottom of this image. Although it can't be seen here, the tiny moonlet Aegaeon (formerly known as S/2008...
Slicing the Arc
Faint filaments in Saturn's atmosphere spiral around two oval-shaped storms in a direction opposite to the winds which rotate around Southern Hemisphere hurricanes on Earth. One storm is seen near...
Filaments and Vortices
This image of Enceladus has not been validated or calibrated. A validated/calibrated image will be archived with the NASA Planetary Data System in 2012. For more information on raw images check o...
Enceladus Jets (raw image)
Shown here are two images of the expected landing site of Cassini's Huygens probe (latitude 10.6 S, longitude 191 W). At right is a wide-angle image showing most of Titan's disc, with a scale of 1...
Hugyens' Landing Site
Bennu and other asteroids represent building blocks of our solar system’s rocky planets.
Bennu and other asteroids
Basking in sunlight, Enceladus looks peaceful and quiet while unseen jets of vapor and icy particles shoot from the south polar terrain of this active moon. The jets can't be seen here, but to wat...
Hidden Activity
This image mosaic, covering an area of 120 by 160 kilometres, was obtained thanks to the images taken by Descent Imager and Spectral Radiometer (DISR) on board Huygens, and provides the complete co...
Revealing Titan's Rugged Surface
This close-up view of Saturn's moon Janus shows what appear to be two large craters near the boundary between day and night. The left side of the moon is lit feebly by reflected light from Saturn. ...
Janus: God of Beginnings
This image from NASA's Dawn spacecraft of asteroid Vesta shows Canuleia crater, a large, irregularly shaped crater. Other interesting features of Canuleia include the diffuse bright material that i...
Canuleia Crater
You Might Also Like
November 16 marks the premiere of a unique film and musical experience inspired by the Hubble Space Telescope’s famous Deep Field image
Hubble's Visualizations of the Universe Form Heart of New "Deep Field" Film
NASA's Spitzer Space Telescope has helped scientists get a better idea of the size of 'Oumuamua — the first known interstellar object to visit our solar system.
NASA Learns More About Interstellar Visitor 'Oumuamua
ESA's Science Programme Committee confirmed the continued operations of ten scientific missions in the agency's fleet up to 2022.
Extended Life for ESA's Science Missions
NASA's InSight lander is scheduled to touch down on the Red Planet at approximately 3 p.m. EST Nov. 26, and viewers everywhere can watch coverage of the event live on NASA Television, the agency's website and social media platforms.
NASA Brings Mars Landing, First in Six Years, to Viewers Everywhere Nov. 26
NASA will host a live Science Chat at 2 p.m. EST Wednesday, Nov. 7, to discuss upcoming encounters of two of the agency’s planetary missions, New Horizons and OSIRIS-REx.
NASA Hosts Science Chat on Two Upcoming Out-of-this-World Encounters
Engineers at NASA's Jet Propulsion Laboratory in Pasadena, California, this week commanded the agency's Curiosity rover to switch to its second computer. The switch will enable engineers to do a detailed diagnosis of a technical issue that has prevented the rover's active computer from storing science and some key engineering data since Sept. 15.
Curiosity on the Move Again
