The external fuel tank for space shuttle Atlantis' STS-129 mission is being lowered into NASA Kennedy Space Center's Vehicle Assembly Building high bay 2 for assembly with the solid rocket boosters already stacked on the mobile launch platform (seen at either side of the tank). The STS-129 mission is targeted to launch Nov. 12 on an 11-day supply mission to the International Space Station. Photo credit: NASA/Jim Grossmann