Robert Zubrin, formerly a senior engineer at Lockheed Martin, is the founder of Pioneer Astronautics, a space-exploration research and development firm. Currently president of the Mars Society, Dr. Zubrin lives with his family in Colorado.
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The human race is at a crossroads. In the coming years, we will make decisions regarding our human spaceflight program that will lead to one of two familiar futures: the open universe of Star Trek, where we allow ourselves the opportunity to spread our wi... SEE MORE