NASA GRC Technology Development Project for a Stirling Radioisotope Power System
Author : Lanny G. Thieme
Publisher :
Page : 18 pages
File Size : 27,31 MB
Release : 2000
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Author : Lanny G. Thieme
Publisher :
Page : 18 pages
File Size : 27,31 MB
Release : 2000
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Publisher :
Page : 16 pages
File Size : 49,70 MB
Release : 2000
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Page : 14 pages
File Size : 39,42 MB
Release : 2000
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Author : National Research Council
Publisher : National Academies Press
Page : 68 pages
File Size : 19,57 MB
Release : 2009-08-14
Category : Science
ISBN : 0309138574
Spacecraft require electrical energy. This energy must be available in the outer reaches of the solar system where sunlight is very faint. It must be available through lunar nights that last for 14 days, through long periods of dark and cold at the higher latitudes on Mars, and in high-radiation fields such as those around Jupiter. Radioisotope power systems (RPSs) are the only available power source that can operate unconstrained in these environments for the long periods of time needed to accomplish many missions, and plutonium-238 (238Pu) is the only practical isotope for fueling them. Plutonium-238 does not occur in nature. The committee does not believe that there is any additional 238Pu (or any operational 238Pu production facilities) available anywhere in the world.The total amount of 238Pu available for NASA is fixed, and essentially all of it is already dedicated to support several pending missions-the Mars Science Laboratory, Discovery 12, the Outer Planets Flagship 1 (OPF 1), and (perhaps) a small number of additional missions with a very small demand for 238Pu. If the status quo persists, the United States will not be able to provide RPSs for any subsequent missions.
Author : James R. Bates
Publisher :
Page : 184 pages
File Size : 46,11 MB
Release : 1979
Category : Apollo Lunar Surface Experiments Package
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Page : 136 pages
File Size : 36,27 MB
Release : 2006
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Author : National Research Council
Publisher : National Academies Press
Page : 399 pages
File Size : 26,40 MB
Release : 2012-01-30
Category : Science
ISBN : 0309224640
In recent years, planetary science has seen a tremendous growth in new knowledge. Deposits of water ice exist at the Moon's poles. Discoveries on the surface of Mars point to an early warm wet climate, and perhaps conditions under which life could have emerged. Liquid methane rain falls on Saturn's moon Titan, creating rivers, lakes, and geologic landscapes with uncanny resemblances to Earth's. Vision and Voyages for Planetary Science in the Decade 2013-2022 surveys the current state of knowledge of the solar system and recommends a suite of planetary science flagship missions for the decade 2013-2022 that could provide a steady stream of important new discoveries about the solar system. Research priorities defined in the report were selected through a rigorous review that included input from five expert panels. NASA's highest priority large mission should be the Mars Astrobiology Explorer Cacher (MAX-C), a mission to Mars that could help determine whether the planet ever supported life and could also help answer questions about its geologic and climatic history. Other projects should include a mission to Jupiter's icy moon Europa and its subsurface ocean, and the Uranus Orbiter and Probe mission to investigate that planet's interior structure, atmosphere, and composition. For medium-size missions, Vision and Voyages for Planetary Science in the Decade 2013-2022 recommends that NASA select two new missions to be included in its New Frontiers program, which explores the solar system with frequent, mid-size spacecraft missions. If NASA cannot stay within budget for any of these proposed flagship projects, it should focus on smaller, less expensive missions first. Vision and Voyages for Planetary Science in the Decade 2013-2022 suggests that the National Science Foundation expand its funding for existing laboratories and establish new facilities as needed. It also recommends that the program enlist the participation of international partners. This report is a vital resource for government agencies supporting space science, the planetary science community, and the public.
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Page : 14 pages
File Size : 36,45 MB
Release : 2000
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Publisher : DIANE Publishing
Page : 195 pages
File Size : 49,29 MB
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ISBN : 142891823X
Author : National Research Council
Publisher : National Academies Press
Page : 376 pages
File Size : 33,23 MB
Release : 2012-06-07
Category : Science
ISBN : 0309253624
NASA's Office of the Chief Technologist (OCT) has begun to rebuild the advanced space technology program in the agency with plans laid out in 14 draft technology roadmaps. It has been years since NASA has had a vigorous, broad-based program in advanced space technology development and its technology base has been largely depleted. However, success in executing future NASA space missions will depend on advanced technology developments that should already be underway. Reaching out to involve the external technical community, the National Research Council (NRC) considered the 14 draft technology roadmaps prepared by OCT and ranked the top technical challenges and highest priority technologies that NASA should emphasize in the next 5 years. This report provides specific guidance and recommendations on how the effectiveness of the technology development program managed by OCT can be enhanced in the face of scarce resources.