Astronaut Frank Culbertson on the ergometer in STS-51 Discovery's middeck

STS051-02-007 (12-22 Sept 1993) --- Astronaut Frank L. Culbertson Jr., STS-51 mission commander, appears to be enjoying a session on the ergometer, temporarily deployed on Discovery's middeck. Culbertson was joined by four other NASA astronauts for almost ten full days in Earth orbit.