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Report of the 90-Day Study on Human Exploration of the Moon and MarsThe basic mission sequence to achieve the President's goal is clear: begin with Space Station Freedom in the 1990's, return to the Moon to stay early in the Next century, and then journey to Mars. Five reference approaches are modeled building on past programs and recent studies to reflect wide-ranging strategies that incorporate varied program objectives, schedules, technologies, and resource availabilities. The reference approaches are (1) balance and speed; (2) the earliest possible landing on Mars; (3) reduce logistics from Earth; (4) schedule adapted to Space Station Freedom; and (5) reduced scales. The study and programmatic assessment have shown that the Human Exploration Initiative is indeed a feasible approach to achieving the President's goals. Several reasonable alternatives exist, but a long-range commitment and significant resources will be required. However, the value of the program and the benefits to the Nation are immeasurable.
Document ID
Acquisition Source
Document Type
Technical Memorandum (TM)
Aaron Cohen
(Johnson Space Center Houston, Texas, United States)
Date Acquired
September 6, 2013
Publication Date
November 1, 1989
Publication Information
Publisher: National Aeronautics and Space Administration
Subject Category
Lunar And Planetary Exploration
Report/Patent Number
NAS 1.15:102999
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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