The external fuel tank will be joined to twin solid rocket boosters on a mobile launcher platform.

In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, the external fuel tank, ET-122, for space shuttle Endeavour's final mission soon will be joined to twin solid rocket boosters on a mobile launcher platform. Endeavour will then be stacked with the tank and boosters for its upcoming STS-134 mission to the International Space Station. Endeavour and its crew will deliver the Express Logistics Carrier-3 and the Alpha Magnetic Spectrometer-2 (AMS) to the orbiting laboratory. Launch is targeted for April 19. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Frank Michaux