...pounds of steel, aluminum and graphite epoxy, has "hands" at either end and seven joints. It will act as a high-tech construction crane, walking end-over-end like an inchworm, to add pieces to the station and lessen the need for astronauts...

...with trash and returned to Endeavour for the trip home. The 58-foot arm, built by Canada, will act as a high-tech construction crane, adding more pieces to the station over the next 15 to 20 years. With two hands and seven joints, it will...

...time the robot arm broke to the time it was fixed. One of the three wrist joints in the Canadian-built high-tech construction crane seized up in March. NASA managed to work around the problem during a building project in April but wanted...

...Mission Control said. The arm, Canada's major contribution to space station Alpha, is essentially a high-tech construction crane that can move end-over-end on the orbiting complex. At 57 feet, 9 inches and 3,618 pounds, the arm...

...Once powered up, the 58-foot arm will be able to walk end-over-end, like an inchworm, and act as a high-tech construction crane, adding pieces to the station over the next 15 to 20 years. Both arms were built by Canada, and Canadian...