NASA Rover Opportunity's selfie shows clean machine

In its sixth Martian winter, NASA's Mars Exploration Rover Opportunity now has cleaner solar arrays than in any Martian winter since its first on the Red Planet, in 2005. Cleaning effects of wind events in March boosted the amount of electricity available for the rover's work.

New findings from an old Mars Rover

New findings from rock samples collected and examined by NASA's Mars Exploration Rover Opportunity have confirmed an ancient wet environment that was milder and older than the acidic and oxidizing conditions told by rocks the rover examined previously.

Mars Rover Opportunity heads uphill

Earlier this week, NASA's Mars Exploration Rover began climbing "Solander Point," the northern tip of the tallest hill it has encountered in the mission's nearly 10 Earth years on Mars.

NASA's Mars rover Opportunity passes half-way point to next destination

NASA's Mars Exploration Rover Opportunity has driven more than half of the distance needed to get from a site where it spent 22 months to its next destination.

Clays - signs of water - are 'widespread' on Mars

Clay minerals - rocks that usually form when water is present for long periods of time - cover much more of Mars than previously thought, say Georgia Institute of Technology scientists.

NASA's Opportunity spots strange spherical objects on Mars

NASA's stalwart Opportunity rover has captured an image of the Martian surface that is puzzling scientists.

NASA's Mars panorama is breathtaking

NASA has released a panoramic image depicting the ruddy terrain around the outcrop where the space agency's Opportunity rover spent its most recent Martian winter.

The dark shadows of Mars

NASA's Mars Exploration Rover Opportunity recently used a low sun angle to snap a memorable view of a large Martian crater.

Inside a Martian tumbleweed rover

Scientists have determined that a wind-driven "tumbleweed" Mars rover would be more than capable of effectively navigating rocky Martian terrain.

Opportunity finds evidence of flowing water on ancient Mars

NASA's Opportunity rover has found veins of a mineral that appears to be gypsum, and which could only have been deposited by flowing water.

Opportunity finds Martian rock with possible signs of water

NASA's Mars rover Opportunity - recently arrived at the Endeavour crater - has found a rock that's different from anything it's seen before.

Mars exploration rover reaches Endeavour crater

NASA’s Mars exploration rover has arrived at the Red Planet’s Endeavour crater which measures some 14 miles (22 kilometers) in diameter.



Mars mission gets cloud computing boost

NASA is using cloud computing to optimize the efficiency of two rovers currently exploring the Martian landscape.