Near Earth Objects And The Impact Hazard Topic 2
DOWNLOAD
Download Near Earth Objects And The Impact Hazard Topic 2 PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Near Earth Objects And The Impact Hazard Topic 2 book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Near Earth Objects And The Impact Hazard Topic 2
DOWNLOAD
Author : Andrew J. Ball
language : en
Publisher:
Release Date : 2006-01
Near Earth Objects And The Impact Hazard Topic 2 written by Andrew J. Ball and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-01 with Asteroids categories.
This topic describes the low-probability but high-consequence hazard posed to Earth by asteroids and comets. The book introduces the astronomy of Solar System bodies and describes the evidence for past impacts on Earth, both small impacts such as Barringer Crater that formed 50,000 years ago and extremely rare events such as the end-Cretaceous impacts at Chicxulub. The book also examines the consequences of a major impact on present-day Earth and the progress towards detecting the potentially threatening bodies that orbit close to the Earth.
Defending Planet Earth
DOWNLOAD
Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2010-07-21
Defending Planet Earth written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-07-21 with Science categories.
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.
Hazards Due To Comets And Asteroids
DOWNLOAD
Author : Tom Gehrels
language : en
Publisher: University of Arizona Press
Release Date : 1994
Hazards Due To Comets And Asteroids written by Tom Gehrels and has been published by University of Arizona Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Science categories.
In 1993, the U.S. Department of Defense declassified information dealing with frequent explosions in the upper atmosphere caused by meteoric impact. It is estimated that impacts have occurred of a magnitude equivalent to the atomic bomb detonated at Hiroshima. Not all such space voyagers meet their end in the atmosphere, however; huge craters attest to the bombardment of earth over millions of years, and a major impact may have resulted in the extinction of dinosaurs. An impact in Siberia near the beginning of this century proves that such events are not confined to geologic time. Hazards Due to Comets and Asteroids marks a significant step in the attempt to come to grips with the threats posed by such phenomena. It brings together more than one hundred scientists from around the world, who draw on observational and theoretical research to focus on the technical problems related to all aspects of dealing with these hazards: searching for and identifying hazardous comets and asteroids; describing their statistics and characteristics; intercepting and altering the orbits of dangerous objects; and applying existent technologies—rocket boosters, rendezvous and soft-landing techniques, instrumentation—to such missions. The book considers defensive options for diverting or disrupting an approaching body, including solar sails, kinetic-energy impacts, nuclear explosives, robotic mass drivers, and various propulsion systems. A cataclysmic impact posing a threat to life on Earth is a possibility that tomorrow's technology is capable of averting. This book examines in depth the reality of the threat and proposes practical measures that can be initiated now should we ever need to deal with it.
Near Earth Object Surveys And Hazard Mitigation Strategies
DOWNLOAD
Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2010-01-30
Near Earth Object Surveys And Hazard Mitigation Strategies written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-01-30 with Science categories.
The United States is currently the only country with an active, government-sponsored effort to detect and track potentially hazardous near-Earth objects (NEOs). Congress has mandated that NASA detect and track 90 percent of NEOs that are 1 kilometer in diameter or larger. These objects represent a great potential hazard to life on Earth and could cause global destruction. NASA is close to accomplishing this goal. Congress has more recently mandated that by 2020 NASA should detect and track 90 percent of NEOs that are 140 meters in diameter or larger, a category of objects that is generally recognized to represent a very significant threat to life on Earth if they strike in or near urban areas. Achieving this goal may require the building of one or more additional observatories, possibly including a space-based observatory. Congress directed NASA to ask the National Research Council to review NASA's near-Earth object programs. This interim report addresses some of the issues associated with the survey and detection of NEOs. The final report will contain findings and recommendations for survey and detection, characterization, and mitigation of near-Earth objects based on an integrated assessment of the problem.
Assessment And Mitigation Of Asteroid Impact Hazards
DOWNLOAD
Author : Josep M. Trigo-Rodríguez
language : en
Publisher: Springer
Release Date : 2016-12-19
Assessment And Mitigation Of Asteroid Impact Hazards written by Josep M. Trigo-Rodríguez and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-19 with Science categories.
This volume is a compilation of the research presented at the International Asteroid Day workshop which was celebrated at Barcelona on June 30th, 2015. The proceedings discuss the beginning of a new era in the study and exploration of the solar system’s minor bodies. International Asteroid Day commemorates the Tunguska event of June 30th, 1908. The workshop’s goal was to promote the importance of dealing proactively with impact hazards from space. Multidisciplinary experts contributed to this discussion by describing the nature of comets and asteroids along with their offspring, meteoroids. New missions to return material samples of asteroids back to Earth such as Osiris-REx and Hayabusa 2, as well as projects like AIM and DART which will test impact deflection techniques for Potentially Hazardous Asteroids encounters were also covered. The proceedings include both an outreach level to popularize impact hazards and a scientific character which covers the latest knowledge on these topics, as well as offering proposals of promising new techniques that will help gain new insights of the properties of these challenging bodies by studying meteoroids and meteorites. Asteroids, comets, meteoroids and meteorites are introduced with descriptions of their nature, origin, and solar system pathways.
The Spaceguard Survey Report Of The Nasa International Near Earth Object Detection Workshop
DOWNLOAD
Author : David Morrison
language : en
Publisher:
Release Date : 1992
The Spaceguard Survey Report Of The Nasa International Near Earth Object Detection Workshop written by David Morrison and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Asteroids categories.
The Threat And The Opportunity Of Asteroids And Other Near Earth Objects
DOWNLOAD
Author : United States. Congress. House. Committee on Science. Subcommittee on Space and Aeronautics
language : en
Publisher:
Release Date : 1998
The Threat And The Opportunity Of Asteroids And Other Near Earth Objects written by United States. Congress. House. Committee on Science. Subcommittee on Space and Aeronautics and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Science categories.
Mitigation Of Hazardous Comets And Asteroids
DOWNLOAD
Author : M. J. S. Belton
language : en
Publisher: Cambridge University Press
Release Date : 2004-09-06
Mitigation Of Hazardous Comets And Asteroids written by M. J. S. Belton and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-09-06 with Science categories.
It is known that large asteroids and comets can collide with the Earth with severe consequences. Although the chances of a collision in a person's lifetime are small, collisions are a random process and could occur at any time. This book collects the latest thoughts and ideas of scientists concerned with mitigating the threat of hazardous asteroids and comets. It reviews current knowledge of the population of potential colliders, including their numbers, locations, orbits, and how warning times might be improved. The structural properties and composition of their interiors and surfaces are reviewed, and their orbital response to the application of pulses of energy is discussed. Difficulties of operating in space near, or on the surface of, very low mass objects are examined. The book concludes with a discussion of the problems faced in communicating the nature of the impact hazard to the public.
Handbook Of Cosmic Hazards And Planetary Defense
DOWNLOAD
Author : Joseph N. Pelton
language : en
Publisher: Springer
Release Date : 2015-04-27
Handbook Of Cosmic Hazards And Planetary Defense written by Joseph N. Pelton and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-27 with Technology & Engineering categories.
Covers in a comprehensive fashion all aspects of cosmic hazards and possible strategies for contending with these threats through a comprehensive planetary defense strategy. This handbook brings together in a single reference work a rich blend of information about the various types of cosmic threats that are posed to human civilization by asteroids, comets, bolides, meteors, solar flares and coronal mass ejections, cosmic radiation and other types of threats that are only recently beginning to be understood and studied, such as investigation of the “cracks” in the protective shield provided by the Van Allen belts and the geomagnetosphere, of matter-antimatter collisions, orbital debris and radiological or biological contamination. Some areas that are addressed involve areas about which there is a good deal of information that has been collected for many decades by multiple space missions run by many different space agencies, observatories and scientific researchers. Other areas involving research and studies that have only recently gotten underway are discussed by some of the world’s foremost experts in each of these areas, who provide up-to-date and scientifically verifiable information. Although much of the work in these various areas have been conducted by space agencies, an expanding range of work is also being carried out by observatories, by universities and other research centers, and even by private foundations and professional organizations. The purpose of this work is thus several-fold: to include the latest information and most systematic research from around the world in a single reference work; to note where there are significant gaps in knowledge where new research, spacecraft, observatories, or other initiatives are needed to fill in critical missing information; and to give the best possible information about preventative actions that might be taken against cosmic threats and identify various alternative strategies that are now under way or planned to cope with these various threats.
Comet Asteroid Impacts And Human Society
DOWNLOAD
Author : Peter T. Bobrowsky
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-06-10
Comet Asteroid Impacts And Human Society written by Peter T. Bobrowsky and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-06-10 with Science categories.
Leading specialists in various disciplines were first invited to a multidisciplinary workshop funded by ICSU on the topic to gain a better appreciation and perspective on the subject of comet/asteroid impacts as viewed by different disciplines. This volume provides a necessary link between various disciplines and comet/asteroid impacts.