Astronauts Conrad and Kerwin - Human Vestibular Function Experiment - JSC

S73-20678 (1 March 1973) --- Astronaut Charles Conrad Jr., commander of the first manned SkyLab mission, checks out the Human Vestibular Function, Experiment M131, during SkyLab training at Johnson Space Center. Scientist-astronaut Joseph P. Kerwin, science pilot of the mission, goes over a checklist. The two men are in the work and experiments compartment of the crew quarters of the SkyLab Orbital Workshop (OWS) trainer at JSC. Photo credit: NASA