Anchored to a Canadarm2 mobile foot restraint, NASA astronaut Steve Bowen participates in the STS-133 mission’s second spacewalk as construction and maintenance continue on the International Space Station. During the six-hour, 14-minute spacewalk, Bowen and fellow astronaut Alvin Drew tackled a variety of tasks, including venting into space some remaining ammonia from a failed pump module they moved during the mission’s first spacewalk. Image Credit: NASA