Defending Planet Earth PDF
By:National Research Council,Division on Engineering and Physical Sciences,Aeronautics and Space Engineering Board,Space Studies Board,Committee to Review Near-Earth-Object Surveys and Hazard Mitigation Strategies
Published on 2010-06-21 by National Academies Press
The United States spends approximately $4 million each year searching for near-Earth objects (NEOs). The objective is to detect those that may collide with Earth. The majority of this funding supports the operation of several observatories that scan the sky searching for NEOs. This, however, is insufficient in detecting the majority of NEOs that may present a tangible threat to humanity. A significantly smaller amount of funding supports ways to protect the Earth from such a potential collision or |mitigation.| In 2005, a Congressional mandate called for NASA to detect 90 percent of NEOs with diameters of 140 meters of greater by 2020. Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies identifies the need for detection of objects as small as 30 to 50 meters as these can be highly destructive. The book explores four main types of mitigation including civil defense, |slow push| or |pull| methods, kinetic impactors and nuclear explosions. It also asserts that responding effectively to hazards posed by NEOs requires national and international cooperation. Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies is a useful guide for scientists, astronomers, policy makers and engineers.
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Book ID of Defending Planet Earth's Books is 19d_6CvVkwAC, Book which was written byNational Research Council,Division on Engineering and Physical Sciences,Aeronautics and Space Engineering Board,Space Studies Board,Committee to Review Near-Earth-Object Surveys and Hazard Mitigation Strategieshave ETAG "pSp88flG/wU"
Book which was published by National Academies Press since 2010-06-21 have ISBNs, ISBN 13 Code is 9780309157216 and ISBN 10 Code is 0309157218
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