Stepping-Stones to the Future of Space Exploration A Workshop Report (2004) / Chapter Skim
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4 NASA Exploration Systems and Architectures
4 NASA Exploration Systems and Architectures
Pages 18-27
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From page 18... ...
Steidle emphasized that the Office of Exploration Systems plans to use findings from the 1986 President's Blue Ribbon Commission on Defense Management,4 which looked at lessons learned from major Department of Defense acquisitions and how they served as drivers in formulating the Exploration systems program. The lessons learned included bringing operators and technologists together to leverage cost-performance trades, applying technology to lower the cost of systems, maturing technology prior to 'Craig Steidle, NASA Headquarters.
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that uses modeling and simulation throughout the life cycle process. Initially the modeling and simulation will focus technology investment on critical operational environments and guide critical trade studies to enable the preparation of system requirements documents.
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Additionally, one role of the Office of Biological and Physical Research will be to conduct life science research to help understand and mitigate the health hazards associated with human spaceflight to deep space destinations. Steidle expects to bring his past Department of Defense acquisition experience in spiral developments to bear on the acquisition of hardware elements necessary to achieve the exploration vision.
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Steidle wants to demonstrate those capabilities and will evaluate the Moon as a testbed for exploration technologies. Charles Walker asked how spiral development would affect the relationship between NASA headquarters and the field centers.
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OVERVIEW OF ADVANCED SYSTEMS, TECHNOLOGIES, RESEARCH, AND ANALYSIS FOR FUTURE SPACEFLIGHT CAPABILITIES John C Mankins, director of human and robotic technology in the Development Programs Division of the NASA Office of Exploration Systems, presented an overview of the Advanced Systems, Technologies, Research, and Analysis (ASTRA)
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From page 23... ...
, the space shuttles, and Viking, among others.9 More recent transformational systems include the third-generation GPS, science observatories such as the Hubble Space Telescope, the Gamma Ray Observatory, the Advanced X-ray Astronomical Facility, the Space infrared Telescope Facility, the International Space Station, and Mars landers, including Snjnurner, Opportunity, and Spirit. He noted that further transfonnational systems and concepts might include optical communications, nuclear space propulsion and power, and deep space outposts.
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From page 24... ...
ASTRA involves both a five-level hierarchical approach and an organizational structure focused on self-sufficient space systems, space utilities and power, habitation, bioastronautics, and EVA, assembly, maintenance, and servicing in space, surface exploration and expeditions, space transportation, in-space instruments and sensors, and information and communications. Mankins concluded his presentation by observing that the new vision for human and robotic exploration represents a long-term, strategic focus for the nation's civil space activities.
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Branscome asked what lessons could be learned from Steidle's Joint Strike Fighter experience. Steidle stated that the technology selection process involved a gap analysis.
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James Gefee, NASA Johr son Space Flight Center, "A Sununaly of Recent NASA Exploration Architecture Studies: Transformational Space infrastructure Strategies," presented to the workshop on February 23, 2004.
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From page 27... ...
The new transformational space infrastructures would instead allow NASA to choose and carry out the most ambitious of the missions based on projections of when the enabling technologies are expected to be ready. If certain technologies are unavailable, mission designers can then fall back on more traditional technologies.
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