Skiers, hikers, and tourists prize Colorado's Rocky Mountains for the steep ski slopes, challenging climbs, and spectacular views; geologists and…
In the Space Shuttle Discovery's airlock, Astronaut Steve Robinson, left, and Japan Aerospace Exploration Agency Astronaut Soichi Noguchi prepare for…
At 86 meters (282 feet) below sea level, Death Valley, California, is one of the hottest, driest places on the…
Like a butterfly, a white dwarf star begins its life by casting off the cocoon that enclosed it. In the…
NASA's Mars Exploration Rover Opportunity recently stopped to analyze an exposure of rock near "Beagle Crater," on a target nicknamed…
An engineer and a technician check out an ion engine in the Electronic Propulsion Research Building at the Lewis Research…
Mimas drifts along in its orbit against the azure backdrop of Saturn's northern latitudes in this true color view from…
A space suit floats freely away from the International Space Station in a scene reminiscent of a sci-fi movie. But…
Astronaut Dave Williams, representing the Canadian Space Agency, participates in the last of four STS-118 spacewalks.
The latest remote sensing data from NASA's Jason satellite show near normal conditions across the equatorial Pacific Ocean. As we…
