space shuttle Discovery's final spaceflight

During space shuttle Discovery's final spaceflight, the STS-133 crew members will take important spare parts to the International Space Station along with the Express Logistics Carrier-4. Discovery has been moved to Launch Pad 39A at NASA's Kennedy Space Center in Florida. STS-133 is slated to launch Nov. 1.

NASA Kennedy Space Center's Launch Pad 39A, work continues to prepare space shuttle Discovery for its STS-133 mission, targeted to launch Nov. 1 at 4:40 p.m. EDT. Technicians have completed prelaunch propellant servicing operations, and the mission's payload -- the Permanent Multipurpose Module, Express Logistics Carrier 4 and an array of spare hardware -- is set to be installed Thursday inside Discovery's payload bay.

The six-person STS-133 astronaut crew will practice procedures for the missions first spacewalk today in NASA Johnson Space Center's Neutral Buoyancy Laboratory.