Mars rover, Opportunity, is driving to a new study area after a dramatic finish to 20 months on "Cape York" with examination of a rock intensely altered by water.
On May 31, 2013, asteroid 1998 QE2 will sail serenely past Earth, getting no closer than about 3.6 million miles
A UK-Canadian team of scientists has discovered ancient pockets of water, which have been isolated deep underground for billions of years
Sierra Nevada Corporation's (SNC) Space Systems Dream Chaser flight vehicle arrived at NASA's Dryden Flight Research Center in Edwards, Calif.
NASA's first mission to sample an asteroid is moving ahead into development and testing in preparation for its launch in 2016.
The world is changing. The question is, can life change with it?
Sunset is a special time of day. Low-hanging clouds glow vivid red and orange as the background sky turns cobalt blue.
An ambitious project to establish a human colony on Mars has attracted applications from tens of thousands
The Apollo-era astronaut says NASA should be working manned Mars missions
Aspiring astronauts and wannabe reality TV stars, take note: A nonprofit that aims to send the first human colonists to Mars by 2023
Kennedy Space Center leaders say they're on schedule for an unmanned test flight next year of Orion, NASA's next vehicle for taking astronauts into space.
NASA this week put the official stamp on an initiative to capture a near-Earth asteroid and haul it back