STS072-321-019 (11-20 Jan. 1996) --- Astronaut Koichi Wakata takes advantage of the microgravity environment on the middeck of the Earth-orbiting Space Shuttle Endeavour. Representing Japan's National Space Development Agency (NASDA), Wakata joined five other astronauts for a week and a half of activity aboard Endeavour. Astronaut Leroy Chiao works in the background.