Dust-covered rocks can be seen in this portion of the 3D image taken by the panoramic camera on NASA's Mars Exploration Rover Spirit. 3D glasses are necessary to view this image.

Dust-covered rocks can be seen in this portion of the 3-D image taken by the panoramic camera on the Mars Exploration Rover Spirit. Scientists plan to use the rover's rock abrasion tool to grind away dusty and weathered rock, exposing fresh rock underneath.

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