Space robot flexes arms for 1st time

From Yahoo! News: Science News:

Astronauts flexed the giant arms of the international space station's new robot for the first time, testing the brakes and maneuvering the appendages into position for a Monday night spacewalk. All the brakes on the Canadian-built robot named Dextre passed the test but one in the wrist joint of its left arm. That brake slipped a tad more than engineers wanted, but officials weren't concerned.

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