Space shuttle Discovery has landed at the Kennedy Space Center after transporting it’s seven astronauts more than six million miles. The crew claimed a successful mission during a post flight press conference, even after facing the challenge of a stuck pressure valve on a replacement tank.

Discovery returned from mission STS-131 to the International Space Station, where the crew delivered more than seven tons of equipment and supplies. During the ten day mission, astronauts Rick Mastracchio and Clayton Anderson executed three spacewalks, installed a 1,700-pound ammonia tank assembly on the station’s exterior, replaced a rate gyro assembly, and retrieved a Japanese experiment and two debris shields.

Source: NASA Space Shuttle Missions

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Commander Alan Poindexter, Pilot Jim Dutton, Mission Specialists Rick Mastracchio, Clay Anderson, Dorothy Metcalf-Lindenburger, Stephanie Wilson and Naoko Yamazaki will execute the 33rd shuttle mission to the International Space Station.

Discovery will carry a multi-purpose logistics module filled with science racks for the laboratories aboard the ISS. The mission has three planned spacewalks, with work to include replacing an ammonia tank assembly, retrieving a Japanese experiment from the station’s exterior, and switching out a rate gyro assembly on the S0 segment of the station’s truss structure.

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Official Press Kit for Mission STS-131