Looking for a piece of the rocks: John S. Lewis has eyes for asteroids
Article Abstract:
University of Arizona's John S. Lewis proposed mining mineral resources from at the 1992 International Space Development Conference. For example, water extracted from asteroids can be used as a rocket propellant. Lewis feels that the study of non-terrestial materials will be the key to space exploration.
Publication Name: Ad Astra
Subject: Astronomy
ISSN: 1041-102X
Year: 1992
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By Jove! Galileo's finds were Jupiter's loves
Article Abstract:
Planetary scientists have long wanted to observe Jupiter's moons, but their distance from Earth made this difficult. New observations by deep space probes have provided scientists with a better look at these satellites, especially Io, Ganymede, Europa and Callisto.
Publication Name: Ad Astra
Subject: Astronomy
ISSN: 1041-102X
Year: 1993
User Contributions:
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