Color coding in this image of Mars represents differences in elevation, measured by the Mars Orbiter Laser Altimeter on NASA's…
Rhythmic patterns of sedimentary layering in Danielson Crater on Mars result from periodic changes in climate related to changes in…
NASA's Mars Exploration Rover Opportunity studied layers in the Burns Cliff slope of Endurance Crater in 2004. The layers show…
Color coding in this image of Gale Crater on Mars represents differences in elevation. The vertical difference from a low…
Expedition 29 Commander Mike Fossum, left, and flight engineers Sergei Volkov, center, and Satoshi Furukawa, sit in chairs outside the…
Mars' Claritas Fossae region is characterized by systems of "graben" running mainly north-west to south-east. A graben forms when a…
This view of channels on Mars came from NASA's Mariner 9 orbiter. In 1971, Mariner 9 became the first spacecraft…
Many technologies of the 21st century are vulnerable to solar storms.
This false-color mosaic from NASA's Cassini spacecraft shows the tail of Saturn's huge northern storm. In mid-September 2004, the Cassini…
NASA's Lunar Reconnaissance Orbiter science team released the highest resolution near-global topographic map of the moon ever created. This new…
