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Curiosity is raising its arm that features a percussive drill and sample-handling system. It will test samples of fine powder taken from interiors of Martian rocks and deliver them to two analytical instruments inside the rover. The tools at the end of the arm include a color camera, an element-identifying spectrometer, a scoop for collecting soil samples and a brush for cleaning rock surfaces.
The arm can be extended about 7.5 feet and the turret and tools on its arm weighs about 73 pounds.