NASA NTRS · 19730005136
Extraterrestrial imperative
Abstract
The future benefits of extraterrestrial space to man and his problems, both personal and environmental, are discussed. Particular attention was given to space manufacturing, development of space power plants, mineral exploration, and transportation costs of such activities.
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Ehricke, K. A.. 1972-01-01. Extraterrestrial imperative. https://ntrs.nasa.gov/citations/19730005136
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