Opportunity arrived on Mars in January 2004. The aging but intrepid rover was built to drive only about a single kilometre but has continued to operate far beyond its design capabilities.
The robot rover, a six-wheeled vehicle about the size of a golf cart, found evidence that fresh water once pooled on the surface of Mars earlier this year.
The rover, on Sunday, advanced another 157 feet (48 meters) as it continued along the rim of a Martian rater. According to NASA's
The Jet Propulsion Laboratory’s (JPL)
The rover still has miles to go. As per scientists, the next plan is to direct Opportunity to a nearby Martian valley. This would extend its accumulated operating distance to 26.2 miles, the traditional length of a marathon.