Orbiter Endeavour is suspended in a vertical position it will be mated with the solid rocket boosters and external tank.

Orbiter Endeavour is suspended in a vertical position inside the Vehicle Assembly Building where it will be mated with the solid rocket boosters and external tank. Endeavour is scheduled to fly on mission STS-88, the first flight for the International Space Station, on Dec. 3, 1998. The primary payload on the mission is the Unity connecting module, which will be mated to the Russian-built Zarya control module expected to already be in orbit at that time