In the Vehicle Assembly Building at NASA's Kennedy Space Center, external fuel tank 129 is lowered between the solid rocket boosters for mating on the mobile launcher platform in high bay 1. The external tank-SRB stack will then be mated in two weeks to space shuttle Endeavour for the STS-126 mission. The STS-126 mission will deliver a Multi-Purpose Logistics Module to the International Space Station. Launch is targeted for Nov. 10. Photo credit: NASA/Jack Pfaller