STS-41G Leestma and Garneau

41G-101-039 (5-13 Oct 1984) --- Two members of a record seven-person crew are pictured during Intravehicular Activity (IVA) aboard the Earth-orbiting Space Shuttle Challenger. Hold picture with open hand at right center edge. Astronaut David C. Leestma, mission specialist, is at right observing a test by payload specialist Marc Garneau, representing the National Research Council (NRC) of Canada. Garneau spent much of his on-duty time conducting a series of experiments for the NRC. The crew consisted of astronauts Robert L. Crippen, commander; Jon A. McBride, pilot; mission specialist's Kathryn D. Sullivan, Sally K. Ride, and David D. Leestma; Canadian astronaut Marc Garneau, and Paul D. Scully-Power, payload specialist's.