Discusses the potentials of space exploration, looks at the history of the space race, and summarizes the goals of programs in Russia, the U.S., Japan, China, and Europe.
John S. Lewis (born June 27, 1941) is a Professor Emeritus of planetary science at the University of Arizona’s Lunar and Planetary Laboratory. His interests in the chemistry and formation of the solar system and the economic development of space have made him a leading proponent of turning potentially hazardous near-Earth objects into attractive space resources.