Manned Mars Missions. This six-page graduate-level paper examines and analyzes manned missions to Mars, and concludes that sending human crews to explore our neighboring planet would not be a wise choice at this time. There are better alternatives, such as establishing a commercial presence in near-earth orbit and the Moon, and exploring Mars with unmanned probes. 6 pgs. Bibliography lists 8 sources. Pages: 6 Bibliography: 8 source(s) listed Filename: 3794 Manned Mars Missions.doc Price: 53.70