Solar System Exploration
Mating of LVA
December 16, 2004
Mating of LVA
Pan may be small as satellites go, but like many of Saturn's ring moons, it has a very visible effect on the rings.
Where the Small Moon Rules
[Note: Re-issued and updated July 8, 2010] An unusually large propeller feature is detected just beyond the Encke Gap in this Cassini image of Saturn's outer A ring taken a couple days after the p...
Giant Propeller in A Ring
The Sun rises over Mars' Utopia Planitia in this Viking 2 image.
Sunrise on Mars (Viking 2)
The cameras on NASA's Cassini spacecraft captured this rare look at Earth and its moon from Saturn orbit on July 19, 2013. The image has been magnified five times. Taken while performing a large wi...
One Special Day in the Life of Planet Earth – Close-Up
The dark region seen on the face of the sun at the end of March 2013 is a coronal hole (just above and to the right of the middle of the picture), which is a source of fast solar wind leaving the s...
Pulses from the Sun
NEAR Shoemaker took these images of Eros on October 16, 2000, while orbiting 54 kilometers (34 miles) above the asteroid.
The Subtle Colors of Eros
It's difficult to get a sense of scale when viewing Saturn's rings, but the Cassini Division (seen here between the bright B ring and dimmer A ring) is almost as wide as the planet Mercury.
The Great Divide
This image, taken by NASA's Dawn spacecraft, shows Ikapati Crater with its complex of central peaks on Ceres. Several groupings of roughly parallel fractures are present in smooth areas of the crat...
Dawn LAMO Image 39
The Sun blew out a coronal mass ejection along with part of a solar filament over a three-hour period on Feb. 24, 2015, as seen by NASA's Solar Dynamics Observatory (SDO).
The Huygens probe is installed into the Cassini orbiter in the Payload Hazardous Servicing Facility at the Kennedy Space Center in July 1997.
Probe at KSC
These images from NASA's Dawn spacecraft show part of Lucaria Tholus quadrangle in asteroid Vesta's northern hemisphere. Lucaria Tholus quadrangle is in Vesta's heavily cratered northern hemisphere.
Topography and Albedo Image of Part of Lucaria Tholus Quadrangle
Cassini soars above the many pits and basins in the rolling landscape of Saturn's moon Iapetus. This mosaic view looks out onto an area close to the northern bright/dark boundary, but still within ...
Titan's atmosphere puts on a display with the detached haze to the north (top of image) and the polar vortex to the south.
Titan's Polar Atmosphere
This colorized map from NASA's Dawn mission shows the distribution of minerals across the surface of the giant asteroid Vesta. It was made from spectra -- or data collected in different wavelengths...
Global Mineral Map of Vesta
Polarized Light from Jupiter's Poles January 23, 2001 These frames taken by NASA's Cassini spacecraft show that infrared light from Jupiter's north and south poles is polarized, which in...
Cassini's closest look yet at bright, icy Enceladus was captured in this view, centered on the moon's trailing hemisphere. It shows some of the linear features in the terrain of the Diyar Planitia...
Zooming In on Enceladus
Mimas and Pandora remind us of how different they are when they appear together as in this Cassini spacecraft image. Although they are both moons of Saturn, Pandora's small size means that it lac...
Two Moons Passing in the Night
This self-portrait of NASA's Curiosity Mars rover shows the vehicle at the "Mojave" site, where its drill collected the mission's second taste of Mount Sharp.
Curiosity Self-Portrait at 'Mojave' Site on Mount Sharp
+ Brightening Adiri -- Annotated Images from NASA's Cassini spacecraft show changes caused by methane rain in the bright Adiri region near the equator of Saturn's largest moon, Titan. Although no...
Brightening Adiri -- Unannotated
The image shown here was acquired at 24 m/pixel, the highest resolution that has been obtained for any of Mercury's shadowed polar craters.
A Shot in the Dark
This close view of Rhea prominently shows two large impact basins on the ancient and battered moon. The great age of these basins is suggested by the large number of smaller craters that are overpr...
Pulverized Pulchritude (Enhanced Color)
The approximate sizes of Pluto's moons Nix and Hydra compared to Denver, Colorado.
Nix and Hydra Compared to Denver
Sunlight illuminates the deep cut of Ithaca Chasma on Saturn's moon Tethys. Ithaca Chasma runs roughly north-south for more than 1,000 kilometers (620 miles) on Tethys. See Steep Scarps for a clos...
These images from NASA's Dawn spacecraft are located in Vesta's Sextilia quadrangle, in asteroid Vesta's southern hemisphere.
Apparent Brightness and Topography Images of Helena Crater
This narrow angle field-of-view artist's rendering is drawn from the floor of Aeneas crater, showing Dione's icy surface and the irregular features inside the crater viewed from space. Saturn, Tit...
Dione's Aeneas Crater
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While past rovers have dug inches into the rusty soils of the Red Planet, NASA is testing out a drill that can go feet deep and operate autonomously with minimal human guidance.
NASA is Testing a Drill to Search for Life on Mars – On Its Own
NASA's efforts to engage a broader audience in exploration through the use of social media and online features was recognized with two Emmy Awards for interactive programming.
NASA Wins Two Emmy Awards for Interactive Mission Coverage
NASA has awarded a contract to Advanced Space of Boulder, Colorado, to develop and operate a CubeSat mission to the same lunar orbit targeted for Gateway.
NASA Funds CubeSat Pathfinder Mission to Unique Lunar Orbit
Two relatively medium-sized asteroids will fly safely past Earth overnight Sept. 13-14 (Eastern U.S. time).
Two Asteroids to Safely Fly by Earth
Comet C/2019 Q4 (Borisov) has excited the astronomical community because it appears to have originated from outside the solar system.
Newly Discovered Comet Is Likely Interstellar Visitor
Saturn is so beautiful that astronomers cannot resist using the Hubble Space Telescope to take yearly snapshots of the ringed world when it is at its closest distance to Earth.
Saturn's Rings Shine in Hubble's Latest Portrait