Curiosity is bare in this pic. No dust on the surface of Mars?

Curiosity Preps for Arm-Work Phase

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After driving more than a football field's length since landing, NASA's Mars rover Curiosity is spending several days preparing for full use of the tools on its arm.

Curiosity extended its robotic arm Wednesday in the first of 6-10 consecutive days of planned activities to test the 7-foot (2.1-meter) arm and the tools it manipulates.

http://www.nasa.gov/