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Human Exploration of Space A Review of NASA's 90-Day Study and Alternatives (1990) / Chapter Skim
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Introduction
Pages 1-4

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From page 1...
... The report contains five "reference approaches" that are intended as a data base for planning, or as a starting point for future discussions involving technical, budgetary, or scheduling options. The primary audience for the report was the National Space Council, headed by the Vice President of the United States.
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From page 2...
... These included the set of reference approaches addressed by NASA in its 90-Day Study and relevant programmatic information; an alternative approach called The Great Exploration, put forward by the Special Studies Program of the Lawrence Livermore National Laboratory; a concept that would utilize identical modules for a space station and the lunar and Mars missions; and several suggestions for improvement of launch and space propulsion capabilities. An extensive library was available to the committee, and key documents are listed in the bibliography.
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From page 3...
... Within practical limits, technical analysts can develop alternative mission scenarios to achieve the stated goals under various sets of constraints, which provide ground rules for design. While scientists and engineers contribute to the policy debate, it is up to the political decision makers to establish the ground rules, which depend in turn on technical options.
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From page 4...
... 4 HZJAL4N EXPLORATION OF SPACE industrial infrastructure to carry out the work Still another was the managerial and administrative challenge of mounting a project of this nature, one that will certainly take many years to accomplish and presumably will result in a sustained program supporting the presence of humans in space.
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