NASA-International Space Station

Image above: On Launch Pad 39A at NASA's Kennedy Space Center in Florida, space shuttle Discovery stands poised for liftoff

-> Meet the STS-131 Crew

Commander Alan Poindexter will lead the STS-131 mission to the International Space Station aboard space shuttle Discovery. Jim Dutton will serve as the pilot. Mission Specialists are Rick Mastracchio, Clay Anderson, Dorothy Metcalf-Lindenburger, Stephanie Wilson and Naoko Yamazaki of the Japan Aerospace Exploration Agency.

Discovery will deliver a multi-purpose logistics module filled with science racks to be transferred to laboratories on the International Space Station. The mission will feature three spacewalks.

Mastracchio and Anderson will conduct three six-and-a-half-hour-long spacewalks on flight days 5, 7 and 9 to replace an ammonia tank assembly, retrieve a Japanese experiment from the station’s exterior and switch out a rate gyro assembly on the S0 element of the station’s truss.

STS-131 is the 33rd shuttle mission to the station.