Technicians check the position of the control moment gyroscope after being placed on an EXPRESS Logistics Carrier.

In the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, technicians check the position of the control moment gyroscope after being placed on an EXPRESS Logistics Carrier. The carrier is part of the STS-129 payload on space shuttle Atlantis, which will deliver to the International Space Station 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. STS-129 is targeted to launch Nov. 12 . Photo credit: NASA/Jack Pfaller