NASA Prepares For Launch Of Space Shuttle Discovery

NASA's STS-131 astronauts Pilot James P. Dutton Jr., mission specialist Dorothy Metcalf-Lindenburger, Commander Alan Poindexter, Japan Aerospace Exploration Agency astronaut Naoko Yamazaki, mission specialists Rick Mastracchio, Stephanie Wilson and NASA astronaut Clayton Anderson walk out of the operations and checkout building at Kennedy Space Center on April 5, 2010 in Cape Canaveral, Florida. The shuttle crew is scheduled to launch later today for a 13 day trip to the International Space Station.
(April 3, 2010 - Source: Joe Raedle/Getty Images North America) more pics from this album »