STS119-S-008 (15 March 2009) --- After suiting up, the STS-119 crewmembers pause alongside the Astrovan to wave farewell to onlookers before heading for launch pad 39A for the launch of Space Shuttle Discovery on the STS-119 mission. From the right are astronauts Lee Archambault, commander; Tony Antonelli, pilot; Joseph Acaba, Steve Swanson, Richard Arnold, John Phillips and Japan Aerospace Exploration Agency’s Koichi Wakata, all mission specialists. Wakata will join Expedition 18 in progress to serve as a flight engineer aboard the International Space Station. Discovery will deliver the final pair of power-generating solar array wings and the S6 truss segment. Installation of S6 will signal the station's readiness to house a six-member crew for conducting increased science.