(09/10/1997) --- STS-86 Mission Specialists Jean-Loup J.M. Chretien of the French Space Agency, at right; David A. Wolf; and Wendy B. Lawrence, at far left, take their seats inside the Space Shuttle Atlantis during a practice launch countdown called the Terminal Countdown Demonstration Test (TCDT). Seven crew members will fly to the Russian Space Station Mir for the seventh docking of the Shuttle with the Russian orbiting outpost. Liftoff is targeted for Sept. 25