STS-42 Commander Grabe uses DTO 653 MK1 Rowing Machine on OV-103's middeck

STS042-209-002 (22-30 Jan 1992) --- Astronaut Ronald J. Grabe, STS-42 mission commander, exercises on Discovery's middeck. Grabe, along with four other NASA astronauts and two International Microgravity Laboratory (IML-1) payload specialists spent more than eight days conducting experiments in Earth orbit.