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 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 ...

NASA’s resilient Opportunity Mars rover is rolling again after waiting out the harsh Red Planet winter for more than four months. On Tuesday (May 8), the Opportunity rover moved its wheels for the ...

NASA’s Opportunity rover was designed for a 90-day mission, but it ended up exploring Mars for 15 years. During that time it traveled more than 42 kilometers, discovering evidence that Mars once had ...

On Wednesday, after nearly eight months of no contact from Opportunity, NASA declared the rover dead. It was only built to work for three months, but 15 years later was still showing us new things ...

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 ...