The STS-112 crew heads for the Astrovan that will take to Launch Pad 39B and Space Shuttle Atlantis.

Still waving at spectators, the STS-112 crew heads for the Astrovan that will take them to Launch Pad 39B and Space Shuttle Atlantis. Liftoff is scheduled for 3:46 p.m. EDT. From left are Mission Specialists Fyodor Yurchikhin David Wolf, and Piers Sellers; Pilot Pamela Melroy; Mission Specialist Sandra Magnus; and Commander Jeffrey Ashby. Sellers, Magnus and Yurchikhin are making their first Shuttle flights. STS-112 is the 15th assembly flight to the International Space Station, carrying the S1 Integrated Truss Structure, the first starboard truss segment, to be attached to the central truss segment, S0, and the Crew and Equipment Translation Aid (CETA) Cart A. The CETA is the first of two human-powered carts that will ride along the ISS railway, providing mobile work platforms for future spacewalking astronauts. On the 11-day mission, three spacewalks are planned to attach the S1 truss to the Station.