Space shuttle Discovery's STS-133 crew members are participating in the Payload Crew Equipment Interface Test or CEIT.

In the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, space shuttle Discovery's STS-133 crew members are participating in the Payload Crew Equipment Interface Test, or CEIT. During this phase of CEIT the astronauts have an opportunity to see first-hand the payload they'll be delivering to the International Space Station. In the right background is the Permanent Multipurpose Module, or PMM, which is packed with supplies and critical spare parts, including Robonaut 2, the dexterous humanoid astronaut helper. Discovery is targeted to launch at 4:40 p.m. EDT Nov. 1. For more information visit www.nasa.gov/shuttle. Photo credit: NASA/Jack Pfaller