Nuts. I’ll let others closer to the effort comment.
Mars rover’s broken wheel is beyond repair [New Scientist]
Mission managers have given up hope of fixing a broken wheel on NASA’s Spirit rover and will simply have to drag the wheel on future drives. The glitch means NASA must avoid terrain with loose soil as it maps out a route to a safe winter haven for the rover.( )
[E]ngineers have lost hope that the wheel can ever recover again. Recent tests at a range of voltage levels failed to produce any movement in the wheel. “It’s just not responding,” says team member Ray Arvidson of Washington University in St. Louis, Missouri, US. [more]
But hey, Spirit has lasted how long past its project date? 🙂