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Search results for "class periods"

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Viewing 1 - 7 of 7 results by relevance

Scientific Uses of the Space Shuttle  (1974)

Report of the Committee on a Commercially Developed Space Facility  (1989)

Practical Applications of a Space Station  (1984)

Post-Challenger Evaluation of Space Shuttle Risk Assessment and Management  (1988)

Organic Matter and the Moon, by Carl Sagan  (1961)

One Universe: At Home in the Cosmos  (2000)