NASA / JPL-Caltech

On May 15, the 3,309th Martian day of its Red Planet mission, NASA's Opportunity rover drove 263 feet (80 meters) southward along the western rim of Endeavour Crater.

By Mike Wall, Space.com

NASA's long-lived Opportunity Mars rover is the new American champion of off-planet driving, breaking a distance record set more than 40 years ago by an Apollo moon buggy.

The six-wheeled Opportunity rover drove 263 feet (80 meters) on Wednesday, bringing its total odometry on the Red Planet to 22.220 miles (35.760 kilometers), NASA officials said. The previous mark had been held by the Apollo 17 moon rover, which astronauts Gene Cernan and Harrison Schmitt drove for 22.210 miles (35.744 km) across the lunar surface in December 1972.

"The record we established with a roving vehicle was made to be broken, and I'm excited and proud to be able to pass the torch to Opportunity," Cernan said a few days ago in a conversation with Opportunity team member Jim Rice, of NASA's Goddard Space Flight Center. Cernan's quote was contained in a NASA announcement about the agency's new distance record.

Opportunity still trails another robot for the international distance record. The Soviet Union's remote-controlled Lunokhod 2 rover traveled 23 miles (37 kilometers) onthe moon in 1973.

The golf-cart-size Opportunity and its twin, Spirit, landed on Mars in January 2004 for what were supposed to be three-month missions to search for signs of past water on the Red Planet. They found plenty of such evidence, then kept on roving.

Spirit stopped communicating with Earth in 2010 and was declared dead a year later. But Opportunity is still going strong, exploring the rim of Mars' Endeavour Crater.

Opportunity had been working at a section of the rim dubbed "Cape York" since the middle of 2011. This week, it began trekking toward an area called Solander Point, which lies 1.4 miles (2.2 kilometers) away, NASA officials said.

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Opportunity rover breaks 40-year-old NASA record for off-world driving