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EXECUTIVE SUMMARY
Pages 1-4

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From page 1...
... The means by which NASA proposes to accomplish these ambitious goals include a combination of scientific research, engineering technology development, and use of the Space Shuttle and the International Space Station (ISS) as microgravity test platforms.
From page 2...
... Such research includes studies on flammability limits, smoldering, flame spread, and flame stability -- all of which contribute both to scientific knowledge and to the engineering know-how needed for successfully pursuing the HEDS goals. Research in microgravity biotechnology is considered essential for understanding and designing reliable life-support systems, for producing nutrients and food for crews during long-duration HEDS missions, and for safely and reliably recycling waste aboard spacecraft for water and oxygen recovery.
From page 3...
... In supporting HEDS, MRD should continue to focus on maintaining its broad program of microgravity research. Although not all of the technological advances needed for HEDS missions will be the direct result of basic research, the unfolding knowledge base and collective experience of microgravity investigators focused within the MRD program will continue to represent unique NASA resources with which to approach the scientific questions underlying many of the barriers to space exploration.
From page 4...
... MRD should take advantage of the ISS as a microgravity platform for investigating closed-cycle, long-term operation of various physical, chemical, and biological systems considered to be within its research purview. In view of the normally long time-scale needed for the evolution of basic scientific concepts into practical applications, MRD should begin now to study and understand the scope and long-term implications of microgravity research areas relevant to accomplishing HEDS goals.


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