Opportunity Finds Way To Brush Rock Surface

Opportunity is still parked in front of the rock layer known as "Smith" inside Victoria Crater. The rover has now lost two encoders that operate motors on the rock abrasion tool during the grinding and brushing of surfaces.

Science team members and engineers have been working in test beds and computer sequencing rooms to devise creative ways of using the rock abrasion tool without the grind and revolve encoders.

http://www.marsdaily.com/reports/Rover_Finds_Way_To_Brush_Rock_Surfaces_Despite_Setbacks_999.html