Payload specialists Garneau and Scully-Power discuss training

41D-3185 (S14-3185) (4 Sept 1984) --- The two payload specialists for NASA's 41-G mission aboard the Challenger chat prior to a simulation session in the Shuttle mockup and integration laboratory at the Johnson Space Center. They are Marc Garneau, left, representing the Canadian National Research Council, and Paul D. Scully-Power, an oceanographer with the U.S. Navy. They are standing near the manipulator development facility (MDF), pictured in background.