Major Construction
Astronaut Robert L. Behnken participates a spacewalk to continue construction and maintenance of the International Space Station. During the 6-hour, 24-minute spacewalk, Behnken and astronaut Mike Foreman (out of frame), replaced a failed Remote Power Control Module -- essentially a circuit breaker -- on the station's truss. The spacewalkers also tested a repair method for damaged heat resistant tiles on the space shuttle. The sample tiles will be returned to Earth to undergo extensive testing on the ground.