KSC-98EC-0534 - Astronaut Frank Caldeiro in front of Discovery as it rolls out of the OPF Astronaut Fernando (Frank) Caldeiro poses in front of the orbiter Discovery as it rolls out of KSC's Orbiter Processing Facility Bay 2 en route to the Vehicle Assembly Building (VAB). Once inside the VAB, Discovery will be hoisted upright into a vertical position to be mated with an orange external tank and two white solid rocket boosters. Once mated, the orbiter becomes the Space Shuttle Discovery, slated for launch on STS-91, the ninth and final docking mission with the Russian Space Station Mir. The six-member crew of STS-91 will dock with Mir and pick up Mission Specialist Andrew Thomas, Ph.D., who will have been on Mir about four months, to return him to Earth. STS-91 is scheduled to launch June 2 at about 6:04 p.m. EDT. 04/27/98