Mission Specialist Valery Ryumin a cosmonaut with the Russian Space Agency arrives as part of final preparations for launch.

STS-91 Mission Specialist Valery Ryumin, a cosmonaut with the Russian Space Agency, arrives at Kennedy Space Center's Shuttle Landing Facility aboard a T-38 jet as part of final preparations for launch. STS-91 is scheduled to be launched on June 2 on Space Shuttle Discovery with a launch window opening around 6:10 p.m. EDT. The mission will feature the ninth Shuttle docking with the Russian Space Station Mir, the first Mir docking for Discovery, the conclusion of Phase I of the joint U.S.-Russian International Space Station Program, and the first flight of the new Space Shuttle super lightweight external tank. The STS-91 flight crew also includes Commander Charles Precourt; Pilot Dominic Gorie; and Mission Specialists Wendy B. Lawrence; Franklin Chang-Diaz, Ph.D.; and Janet Kavandi, Ph.D. Andrew Thomas, Ph.D., will be returning to Earth with the crew after living more than four months aboard Mir