NASA’s Opportunity rover uncovered mineral patterns and geological layers that matched formations created by water on Earth.

NASA's Opportunity Mars rover was built to operate for just 90 days, but kept going for 15 years. NASA officially declared it dead on Wednesday, and its last message to scientists before it went dark ...

This is a farewell to Opportunity—the resilient Mars rover that journeyed 28 miles over 14 years. Composed from thousands of ...

Opportunity lost. NASA has officially declared an end to the mission of the six-wheeled rover on Mars. Opportunity lost power in a dust storm last June, and all efforts to make contact have failed.

The golf cart-size rover was designed to last only three months, but proved itself to be an unexpected endurance athlete. It traveled more than the distance of a marathon when less than half a mile ...

This year, NASA’s scientific rover Opportunity celebrated a milestone. It has been exploring Mars for ten years, even though it was only supposed to operate for three months. John Callas is the ...

Scientists suspect iron meteorites might be able to resist erosion on Mars, which may explain why some appear perched on flat ground rather than embedded in craters. In other cases, a crater may have ...

HOUSTON -- The odometer of NASA's Mars rover Opportunity has hit 25.01 miles, breaking the record for off-Earth distance traveled. NASA officials said Monday that Opportunity drove 157 feet over the ...