KSC-00PP-1203 - STS-92 Discovery rolls to the VAB for stacking The orbiter Discovery rolls into the Vehicle Assembly Building where it will be mated with its external tank and solid rocket boosters. Discovery is scheduled to launch Oct. 5 at 9:30 p.m. EDT on mission STS-92, delivering two elements of the International Space Station: the Z-1 truss and Pressurized Mating Adapter-3. The launch will be the 100th flight in the Shuttle program. 08/24/2000