Technicians check the positioning of the Permanent Multipurpose Module or PMM after an overhead crane lowered into the payload canister.

In the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, technicians check the positioning of the Permanent Multipurpose Module, or PMM, after an overhead crane lowered it into the payload canister. Also being installed inside the canister is the Express Logistics Carrier-4 (top) carrying the Heat Rejection Subsystem radiator.

The canister will then be transported to Launch Pad 39A and installed into space shuttle Discovery's payload bay. Discovery and its STS-133 crew will deliver the PMM, packed with supplies and critical spare parts, as well as Robonaut 2, the dexterous humanoid astronaut helper, to the International Space Station. Launch is targeted for 4:40 p.m. EDT, Nov. 1. Photo credit: NASA/Cory Huston