At NASA's Kennedy Space Center in Florida workers prepare to transfer the canister containing the payload.

At NASA's Kennedy Space Center in Florida, workers prepare to transfer the canister containing the payload for space shuttle Atlantis' STS-129 mission to the International Space Station - Express Logistics Carriers 1 and 2 - into the Payload Changeout Room at Launch Pad 39A. Next, the payload will be installed in Atlantis' payload bay.

The STS-129 crew will deliver two spare gyroscopes, two nitrogen tank assemblies, two pump modules, an ammonia tank assembly and a spare latching end effector for the station's robotic arm. Launch is set for Nov. 16. For information on the STS-129 mission objectives and crew, visit http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts129/index.html. Photo credit: NASA/Amanda Diller