Light from the morning sun glances off the back of Space Shuttle Discovery as it sits.

Light from the morning sun glances off the back of Space Shuttle Discovery as it sits on Launch Pad 39A. On the horizon can be seen the Atlantic Ocean. Discovery is scheduled to launch Oct. 5 at 9:30 p.m. EDT on mission STS-92. Making the 100th Space Shuttle mission launched from Kennedy Space Center, Discovery will carry two pieces of hardware for the International Space Station, the Z1 truss, which is the cornerstone truss of the Station, and the third Pressurized Mating Adapter. Discovery also will be making its 28th flight into space, more than any of the other orbiters to date