30.

Opportunity Surpasses 30 KM Driving and Snaps Skylab Crater in 3 D ShareWith her most recent drive of 482 feet (146.8 meters) on June 1, 2011 (Sol 2614), NASA's Opportunity Mars Rover has zoomed past the unimaginable 30 kilometer (18,64 miles) mark in total odometry since safely landing ... Winslow T. Wheeler: Did Robert Gates Terminate 30 DOD Hardware ...