NASA - National Aeronautics and Space Administration

NASA Mars Rover Churns Up Questions With Sulfur-Rich Soil

Some bright Martian soil containing lots of sulfur and a trace of water intrigues researchers who are studying information provided by NASA's Spirit rover.

Mars Rover Completes a 10-K

NASA's durable Mars Exploration Rover Opportunity is the first robot to travel 10 kilometers on Mars. It reached that total (6.2 miles) during a drive on Feb. 6, seen above.

NASA Mars Team Teaches Old Rovers New Tricks to Kick Off Year Four

NASA's twin Mars rovers, nearing the third anniversary of their landings, are getting smarter as they get older.

NASA Spacecraft Read Layered Clues to Changes on Mars

Layers on Mars are yielding history lessons revealed by instruments flying overhead and rolling across the surface.

'McMurdo' Panorama from Spirit's 'Winter Haven'

NASA Mars Rover Arrives at Dramatic Vista on Red Planet

NASA's Mars Rover Opportunity has arrived at the rim of a crater approximately five times wider than a previous stadium-sized one it studied for half a year.

NASA Rover Opportunity Takes First Peek Into Victoria Crater

On Monday, NASA's Mars rover Opportunity got to within about 160 feet of the rim of the half-mile-wide Victoria Crater, the rover's destination since late 2004.

NASA Rover Nears Martian Bowl Goal

NASA's Mars rover Opportunity is closing in on what may be the grandest overlook and richest science trove of its long mission.

Rovers Head for New Sites

NASA's Mars rover Spirit has reached a safe site for the Martian winter, while its twin, Opportunity, is making fast progress toward a destination of its own.

Mars Rovers Get New Manager During Challenging Period

NASA's long-lived Mars rovers demand lots of care as they age and the Martian winter approaches.

Mars Rovers Advance Understanding of the Red Planet

NASA's Mars rovers, Spirit and Opportunity, have been working overtime to help scientists better understand ancient environmental conditions on the red planet.

NASA's Mars Rovers Continue to Explore and Amaze

NASA's durable twin Mars rovers have successfully explored the surface of the mysterious red planet for a full Martian year (687 Earth days).

NASA Rover Helps Reveal Possible Secrets of Martian Life

Life may have had a tough time getting started in the ancient environment that left its mark in the Martian rock layers examined by NASA's Opportunity rover.

NASA's Durable Spirit Sends Intriguing New Images From Mars

Working atop a range of Martian hills, NASA's Spirit rover is rewarding researchers with tempting scenes filled with evidence of past planet environments.

NASA's Opportunity Rover Rolls Free on Mars

Engineers and mission managers for NASA's Mars Exploration Rover mission cheered when images from the Martian surface confirmed Opportunity had successfully escaped from a sand trap.

Rovers Continue Martian Missions

NASA's Mars rover Opportunity is trying to escape from a sand trap, while its twin, Spirit, has been busy finding new clues to a wet and violent early Martian history.

Rover Team Tests Mars Moves on Earth

Mars rover engineers are using a testing laboratory to simulate specific Mars surface conditions where NASA's rover Opportunity has spun its wheels in a small dune.

Mars Rover Panorama Shows Vista From 'Lookout' Point

From a ridgeline vantage point overlooking slopes, valleys and plains, NASA's Mars Exploration Rover Spirit has returned its latest color panorama of the martian landscape.

Movie Clip Shows Whirlwinds Carrying Dust on Mars

NASA's Mars Exploration Rover Spirit is taking movies of dust devils -- whirlwinds carrying dust -- scooting across a plain on Mars.

Durable Mars Rovers Sent Into Third Overtime Period

NASA has approved up to 18 more months of operations for Spirit and Opportunity