MS Thornton and MS Gardner conduct DSO 410 on middeck

STS008-18-468 (30 Aug-5 Sept 1983) --- Astronaut William E. Thornton, right conducts an audiometry test on Astronaut Dale A. Gardner in the mid deck of the Earth-orbiting Space Shuttle Challenger. Both men are mission specialists for the reusable spacecraft’s second five-person crew. This frame was shot with a 35mm camera.