Anchored to the foot restraint on the Canadarm2, STS-118 mission specialist Dave Williams removed a faulty control moment gyroscope and installed a new one with the assistance of fellow astronaut Rick Mastracchio (out of frame). The new gyroscope is one of four that are used to control the station's attitude in orbit.
Anchored to the foot restraint on the Canadarm2, STS-118 mission specialist Dave Williams removed a faulty control moment gyroscope and installed a new one with the assistance of fellow astronaut Rick Mastracchio (out of frame). The new gyroscope is one of four that are used to control the station’s attitude in orbit.Image credit: NASA