Shuttle Launch Director Mike Leinbach talks to media about proceeding with space shuttle Discovery's launch countdown.

At NASA's Kennedy Space Center in Florida, Shuttle Launch Director Mike Leinbach talks to media about proceeding with space shuttle Discovery's launch countdown. Lift off had been postponed to evaluate a controller that showed an irregular power drop in Discovery's No. 3 engine.

Now scheduled to launch Nov. 4 at 3:29 p.m. EDT, Discovery and its STS-133 crew will deliver the Permanent Multipurpose Module, packed with supplies and critical spare parts, as well as Robonaut 2, the dexterous humanoid astronaut helper, to the orbiting laboratory. For more information on the STS-133 mission, visit www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts133/. Photo credit: NASA/Kim Shiflett