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KENNEDY SPACE CENTER, FLA. -- The mobile launcher platform with space shuttle Endeavour on top comes to rest on Launch Pad 39A. Prior to launch on the STS-123 mission, Endeavour will undergo three weeks of processing at the pad. At left is the rotating service structure, or RSS, which will pivot and close around the shuttle. The RSS provides protected access to the orbiter for crew entry and servicing of payloads at the pad. The journey from the Vehicle Assembly Building began at 11:24 p.m. on Feb. 17, approximately 30 minutes before it's scheduled start time due to favorable weather conditions. The shuttle arrived at the launch pad at 4:45 a.m. Monday and was hard down at 6:22 a.m. On the mission, Endeavour and its crew will deliver the first section of the Japan Aerospace Exploration Agency's Kibo laboratory and the Canadian Space Agency's two-armed robotic system, Dextre. Launch is targeted for March 11. Photo credit: NASA/Amanda Diller