Astronaut Rick Mastracchio takes part in the second spacewalk of STS-131. During the seven-hour, 26-minute spacewalk, Mastracchio and astronaut Clayton Anderson unhooked and removed a depleted ammonia tank then installed a 1,700-pound ammonia tank on the station's truss, completing the second of a three-spacewalk coolant tank replacement process.
Astronaut Rick Mastracchio takes part in the second spacewalk of STS-131. During the seven-hour, 26-minute spacewalk, Mastracchio and astronaut Clayton Anderson unhooked and removed a depleted ammonia tank then installed a 1,700-pound ammonia tank on the station’s Starboard 1 truss, completing the second of a three-spacewalk coolant tank replacement process.
April 11, 2010Photo credit: NASA