Mars rover engineers are using a testing laboratory to simulate specific Mars surface conditions where NASA's rover Opportunity has spun its wheels in a small dune. Careful testing is preceding any commands for Opportunity to resume moving to get out of the dune and continue exploring.
The rover team at NASA's Jet Propulsion Laboratory, Pasadena, Calif., has cooked up recipes combining various sandy and powdery materials for the best simulation on Earth of the dune where Opportunity dug itself in to wheel-hub depth last week. The team has not asked Opportunity to turn its wheels at all since the rover bogged down during a drive on April 26.
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