English: At Launch Pad 39A at NASA's Kennedy Space Center in Florida, the members of space shuttle Discovery's STS-131 crew take time out from their training to pose for a group portrait in the pad's White Room. Kneeling, from left, are Commander Alan Poindexter, Pilot James P. Dutton Jr., and Mission Specialist Naoko Yamazaki of the Japan Aerospace Exploration Agency. Standing, from left, are Mission Specialists Clayton Anderson, Dorothy Metcalf-Lindenburger, Rick Mastracchio and Stephanie Wilson. Behind them is the hatch through which they will enter Discovery's crew compartment for their countdown rehearsal. The crew members of space shuttle Discovery's STS-131 mission are at Kennedy for training related to their launch dress rehearsal, the Terminal Countdown Demonstration Test. The seven-member crew will deliver the multi-purpose logistics module Leonardo, filled with resupply stowage platforms and racks, to the International Space Station aboard Discovery. _targeted for launch on April 5, STS-131 will be the 33rd shuttle mission to the station and the 131st shuttle mission overall.