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3 Gaps in the Scope of the Exploration Technology Development Program
Pages 51-55

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From page 51...
... calls for NASA to "materially con tribute" to "the preservation of the role of the United States as a leader in aeronautical and space science and technology and in the application thereof to the conduct of peaceful activities within and outside the atmosphere." The Vision for Space Exploration (VSE) calls for NASA to "develop the innovative technologies, knowledge, and infrastructures both to explore and to support decisions about the destinations for human exploration." 1 The ETDP's responsibilities for and burden of husbanding the civil space technology of the nation must be considered in light of these empowering charters and of the fact that the ETDP is the primary space technology program in NASA.
From page 52...
... 6National Aeronautics and Space Administration, Human Research Program Requirements Document, Human Research Program, HRP 47052, Revision A, NASA Johnson Space Center, Houston, Tex., July 2007. 7National Research Council, A Risk Reduction Strategy for Human Exploration of Space: A Review of NASA's Bioastronautics Roadmap, The National Academies Press, Washington, D.C., 2006, p.
From page 53...
... Recommendation 2 on the Human System: Exploration Technology Development Program (ETDP) project managers should systematically include representatives of the Human Research Program on the ETDP technology development teams.
From page 54...
... Total round-trip times of less than 500 days are possible for spacecraft that have an initial mass in low Earth orbit equivalent to those of chemically propelled missions lasting 900 days. Shorter trip times translate into reduced radiation doses from cosmic rays, microgravity effects, and psychological stresses associated with being confined in a spacecraft for months at a time.
From page 55...
... SUMMARY COMMENTS NASA must couple the human aspects of its mission with its technology development program in order to succeed. NASA could return humans to the Moon without nuclear thermal propulsion technology, but the ability to go beyond the Apollo program would be substantially reduced.


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