CAPE CANAVERAL, Fla. - At Launch Pad 39A at NASA's Kennedy Space Center in Florida, STS-131 Mission Specialist Rick Mastracchio prepares to enter space shuttle Discovery from the pad's White Room. The members of space shuttle Discovery's STS-131 crew, dressed in their launch-and-entry suits, are participating in the Terminal Countdown Demonstration Test, or TCDT, a dress rehearsal for launch. TCDT includes training on the emergency exit systems at the launch pad, driving practice of the M-113 armored personnel carrier and a simulated launch countdown. The crew will deliver the multi-purpose lo
CAPE CANAVERAL, Fla. - At Launch Pad 39A at NASA's Kennedy Space Center in Florida, STS-131 Mission Specialist Rick Mastracchio prepares to enter space shuttle Discovery from the pad's White Room. The members of space shuttle Discovery's STS-131 crew, dressed in their launch-and-entry suits, are participating in the Terminal Countdown Demonstration Test, or TCDT, a dress rehearsal for launch. TCDT includes training on the emergency exit systems at the launch pad, driving practice of the M-113 armored personnel carrier and a simulated launch countdown. The crew will deliver the multi-purpose logistics module Leonard, filled with resupply stowage platforms and science racks, to the International Space Station. STS-131, targeted for launch on April 5, will be the 33rd shuttle mission to the station and the 131st shuttle mission overall.
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