Near Earth Objects Neos

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Defending Planet Earth

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
Defending Planet Earth Book PDF

Author : 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
Publisher : National Academies Press
Page : 152 pages
File Size : 40,5 Mb
Release : 2010-07-21
Category : Science
ISBN : 9780309149686

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Defending Planet Earth 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 Pdf

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.

Near-Earth Objects

Donald K. Yeomans
Near Earth Objects Book PDF

Author : Donald K. Yeomans
Publisher : Princeton University Press
Page : 192 pages
File Size : 53,7 Mb
Release : 2016-11-08
Category : Science
ISBN : 9780691173337

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Near-Earth Objects by Donald K. Yeomans Pdf

An insider's look at the science of near-Earth comets and asteroids Of all the natural disasters that could befall us, only an Earth impact by a large comet or asteroid has the potential to end civilization in a single blow. Yet these near-Earth objects also offer tantalizing clues to our solar system's origins, and someday could even serve as stepping-stones for space exploration. In this book, Donald Yeomans introduces readers to the science of near-Earth objects—its history, applications, and ongoing quest to find near-Earth objects before they find us. In its course around the sun, the Earth passes through a veritable shooting gallery of millions of nearby comets and asteroids. One such asteroid is thought to have plunged into our planet sixty-five million years ago, triggering a global catastrophe that killed off the dinosaurs. Yeomans provides an up-to-date and accessible guide for understanding the threats posed by near-Earth objects, and also explains how early collisions with them delivered the ingredients that made life on Earth possible. He shows how later impacts spurred evolution, allowing only the most adaptable species to thrive—in fact, we humans may owe our very existence to objects that struck our planet. Yeomans takes readers behind the scenes of today’s efforts to find, track, and study near-Earth objects. He shows how the same comets and asteroids most likely to collide with us could also be mined for precious natural resources like water and oxygen, and used as watering holes and fueling stations for expeditions to Mars and the outermost reaches of our solar system.

Exploration of Near Earth Objects

Committee on Planetary and Lunar Exploration,Commission on Physical Sciences, Mathematics, and Applications,Space Studies Board,Division on Engineering and Physical Sciences,National Research Council
Exploration of Near Earth Objects Book PDF

Author : Committee on Planetary and Lunar Exploration,Commission on Physical Sciences, Mathematics, and Applications,Space Studies Board,Division on Engineering and Physical Sciences,National Research Council
Publisher : National Academies Press
Page : 45 pages
File Size : 46,9 Mb
Release : 1998-05-18
Category : Science
ISBN : 9780309524070

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Exploration of Near Earth Objects by Committee on Planetary and Lunar Exploration,Commission on Physical Sciences, Mathematics, and Applications,Space Studies Board,Division on Engineering and Physical Sciences,National Research Council Pdf

Comets and asteroids are in some sense the fossils of the solar system. They have avoided most of the drastic physical processing that shaped the planets and thus represent more closely the properties of the primordial solar nebula. What processing has taken place is itself of interest in decoding the history of our solar neighborhood. Near-Earth objects are also of interest because one or more large ones have been blamed for the rare but devastating events that caused mass extinctions of species on our planet, as attested by recent excitement over the impending passage of asteroid 1997 XF11. The comets and asteroids whose orbits bring them close to Earth are clearly the most accessible to detailed investigation, both from the ground and from spacecraft. When nature kindly delivers the occasional asteroid to the surface of Earth as a meteorite, we can scrutinize it closely in the laboratory; a great deal of information about primordial chemical composition and primitive processes has been gleaned from such objects. This report reviews the current state of research on near-Earth objects and considers future directions.Attention is paid to the important interplay between ground-based investigations and spaceborne observation or sample collection and return. This is particularly timely since one U.S. spacecraft is already on its way to rendezvous with a near-Earth object, and two others plus a Japanese mission are being readied for launch. In addition to scientific issues, the report considers technologies that would enable further advances in capability and points out the possibilities for including near-Earth objects in any future expansion of human exploration beyond low Earth orbit.

Near-Earth Objects

Leon Sinclair
Near Earth Objects Book PDF

Author : Leon Sinclair
Publisher : Unknown
Page : 111 pages
File Size : 54,6 Mb
Release : 2016
Category : SCIENCE
ISBN : 1634840682

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Near-Earth Objects by Leon Sinclair Pdf

Scientists classify comets and asteroids that pass within 28 million miles of Earth's orbit as near-Earth objects (NEOs). Asteroids that collide and break into smaller fragments are the source of most NEOs, and the resulting fragments bombard the Earth at the rate of more than 100 tons a day. Although the vast majority of NEOs that enter Earth's atmosphere disintegrate before reaching the surface, those larger than 100 meters (328 feet) may survive the descent and cause destruction in and around their impact sites. Furthermore, even smaller objects that disintegrate before reaching Earth's surface can cause significant damage. This book examines NASA's NEO Program and assesses the Agency's progress toward meeting statutory and other Program goals. Specifically, it reviews NASA's allocation and use of resources and plans for the future of the Program.

Asteroids III

William Frederick Bottke
Asteroids III Book PDF

Author : William Frederick Bottke
Publisher : University of Arizona Press
Page : 818 pages
File Size : 48,7 Mb
Release : 2002-01-01
Category : Science
ISBN : 0816522812

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Asteroids III by William Frederick Bottke Pdf

Two hundred years after the first asteroid was discovered, asteroids can no longer be considered mere points of light in the sky. Spacecraft missions, advanced Earth-based observation techniques, and state-of-the-art numerical models are continually revealing the detailed shapes, structures, geological properties, and orbital characteristics of these smaller denizens of our solar system. This volume brings together the latest information obtained by spacecraft combined with astronomical observations and theoretical modeling, to present our best current understanding of asteroids and the clues they reveal for the origin an,d evolution of the solar system. This collective knowledge, prepared by a team of more than one hundred international authorities on asteroids, includes new insights into asteroid-meteorite connections, possible relationships with comets, and the hazards posed by asteroids colliding with Earth. The book's contents include reports on surveys based on remote observation and summaries of physical properties; results of in situ exploration; studies of dynamical, collisional, cosmochemical, and weathering evolutionary processes; and discussions of asteroid families and the relationships between asteroids and other solar system bodies. Two previous Space Science Series volumes have established standards for research into asteroids. Asteroids III carries that tradition forward in a book that will stand as the definitive source on its subject for the next decade.

Comet/Asteroid Impacts and Human Society

Peter T. Bobrowsky,Hans Rickman
Comet Asteroid Impacts and Human Society Book PDF

Author : Peter T. Bobrowsky,Hans Rickman
Publisher : Springer Science & Business Media
Page : 546 pages
File Size : 50,6 Mb
Release : 2007-06-10
Category : Science
ISBN : 9783540327110

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Comet/Asteroid Impacts and Human Society by Peter T. Bobrowsky,Hans Rickman Pdf

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.

The Asteroid Threat

William E. Burrows
The Asteroid Threat Book PDF

Author : William E. Burrows
Publisher : Unknown
Page : 294 pages
File Size : 41,5 Mb
Release : 2014
Category : Nature
ISBN : 9781616149130

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The Asteroid Threat by William E. Burrows Pdf

Presents a realistic, workable plan for defusing a potentially lethal threat from a rogue asteroid or comet. The explosion of a large meteor over Chelyabinsk, Siberia, in February 2013 is just the latest reminder that planet Earth is vulnerable to damaging and potentially catastrophic collisions with space debris of various kinds. In this informative and forward-looking book, veteran aerospace writer William E. Burrows explains what we can do in the future to avoid far more serious impacts from "Near-Earth Objects" (NEOs), as they are called in the planetary defense community. The good news is that humanity is now equipped with the advanced technology necessary to devise a long-term strategy to protect the planet. Burrows outlines the following key features of an effective planetary defense strategy- * A powerful space surveillance system capable of spotting a serious threat from space at least a year in advance * A space craft "nudge" that would throw a collision-course asteroid off target long before it poses the threat of imminent impact * A weapons system to be used as a last-ditch method to blast an NEO should all else fail. The author notes the many benefits for world stability and increasing international cooperation resulting from a united worldwide effort to protect the planet. Combining realism with an optimistic can-do attitude, Burrows shows that humanity is capable of overcoming a potentially calamitous situation.

Encyclopedia of the Solar System

Lucy-Ann McFadden,Torrence Johnson,Paul Weissman
Encyclopedia of the Solar System Book PDF

Author : Lucy-Ann McFadden,Torrence Johnson,Paul Weissman
Publisher : Elsevier
Page : 992 pages
File Size : 46,8 Mb
Release : 2006-12-18
Category : Science
ISBN : 0080474985

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Encyclopedia of the Solar System by Lucy-Ann McFadden,Torrence Johnson,Paul Weissman Pdf

Long before Galileo published his discoveries about Jupiter, lunar craters, and the Milky Way in the Starry Messenger in 1610, people were fascinated with the planets and stars around them. That interest continues today, and scientists are making new discoveries at an astounding rate. Ancient lake beds on Mars, robotic spacecraft missions, and new definitions of planets now dominate the news. How can you take it all in? Start with the new Encyclopedia of the Solar System, Second Edition. This self-contained reference follows the trail blazed by the bestselling first edition. It provides a framework for understanding the origin and evolution of the solar system, historical discoveries, and details about planetary bodies and how they interact—and has jumped light years ahead in terms of new information and visual impact. Offering more than 50% new material, the Encyclopedia includes the latest explorations and observations, hundreds of new color digital images and illustrations, and more than 1,000 pages. It stands alone as the definitive work in this field, and will serve as a modern messenger of scientific discovery and provide a look into the future of our solar system. · Forty-seven chapters from 75+ eminent authors review fundamental topics as well as new models, theories, and discussions · Each entry is detailed and scientifically rigorous, yet accessible to undergraduate students and amateur astronomers · More than 700 full-color digital images and diagrams from current space missions and observatories amplify the chapters · Thematic chapters provide up-to-date coverage, including a discussion on the new International Astronomical Union (IAU) vote on the definition of a planet · Information is easily accessible with numerous cross-references and a full glossary and index

Handbook of Cosmic Hazards and Planetary Defense

Joseph N. Pelton,Firooz Allahdadi
Handbook of Cosmic Hazards and Planetary Defense Book PDF

Author : Joseph N. Pelton,Firooz Allahdadi
Publisher : Springer
Page : 0 pages
File Size : 53,8 Mb
Release : 2015-04-27
Category : Technology & Engineering
ISBN : 3319039512

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Handbook of Cosmic Hazards and Planetary Defense by Joseph N. Pelton,Firooz Allahdadi Pdf

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.

Primitive Meteorites and Asteroids

Neyda M. Abreu
Primitive Meteorites and Asteroids Book PDF

Author : Neyda M. Abreu
Publisher : Elsevier
Page : 558 pages
File Size : 51,8 Mb
Release : 2018-07-27
Category : Science
ISBN : 9780128133262

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Primitive Meteorites and Asteroids by Neyda M. Abreu Pdf

Primitive Meteorites and Asteroids: Physical, Chemical, and Spectroscopic Observations Paving the Way to Exploration covers the physical, chemical and spectroscopic aspects of asteroids, providing important data and research on carbonaceous chondrites and primitive meteorites. This information is crucial to the success of missions to parent bodies, thus contributing to an understanding of the early solar system. The book offers an interdisciplinary perspective relevant to many fields of planetary science, as well as cosmochemistry, planetary astronomy, astrobiology, geology and space engineering. Including contributions from planetary and missions scientists worldwide, the book collects the fundamental knowledge and cutting-edge research on carbonaceous chondrites and their parent bodies into one accessible resource, thus contributing to the future of space exploration. Presents the most current data and information on the mission-relevant characteristics of primitive asteroids Addresses the physical, chemical and spectral characteristics of carbonaceous chondritic meteorites and the bearings on successful exploration of their parent asteroids Includes chapters on geotechnical properties and resource extraction

Asteroids IV

Patrick Michel,Francesca E. DeMeo,William F. Bottke
Asteroids IV Book PDF

Author : Patrick Michel,Francesca E. DeMeo,William F. Bottke
Publisher : University of Arizona Press
Page : 946 pages
File Size : 53,9 Mb
Release : 2015-12-31
Category : Science
ISBN : 9780816532131

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Asteroids IV by Patrick Michel,Francesca E. DeMeo,William F. Bottke Pdf

"More than forty chapters detail our current astronomical, compositional, geological, and geophysical knowledge of asteroids, as well as their unique physical processes and interrelationships with comets and meteorites"--Provided by publisher.

Mitigation of Hazardous Comets and Asteroids

M. J. S. Belton
Mitigation of Hazardous Comets and Asteroids Book PDF

Author : M. J. S. Belton
Publisher : Cambridge University Press
Page : 448 pages
File Size : 49,5 Mb
Release : 2004-09-06
Category : Science
ISBN : 0521827647

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Mitigation of Hazardous Comets and Asteroids by M. J. S. Belton Pdf

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.

Planetary Defense

Nikola Schmidt
Planetary Defense Book PDF

Author : Nikola Schmidt
Publisher : Springer
Page : 475 pages
File Size : 42,8 Mb
Release : 2018-12-26
Category : Political Science
ISBN : 9783030010003

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Planetary Defense by Nikola Schmidt Pdf

Planetary defense from near-Earth objects such as asteroids is a far more nuanced and challenging topic than it might seem. Each day, technology is making it easier to detect asteroid impact threats in advance, but at present, there is still no easy way to design and implement any form of global defense. This book examines how various asteroid deflection methods can change global political affairs. The authors believe that the final policy for potential Earth impacts should be based on practical engineering solutions and innovative architectural structures, while at the same time reflecting the most recent political science contributions in ethical security studies and security cosmopolitanism. Their focus is not limited to effective engineering solutions, but rather extends to how such proposals resonate in possible political structures of the future. Planetary defense cannot be achieved with technology alone; the chapters in this volume highlight the issues that arise when space science and technology intersect with political science. This complex interdisciplinary project not only demands global participation and collaboration, but also proposes the way we can achieve it. The authors explore various concepts of governance and their far-reaching implications for planetary defense and vice versa—how scientific progress in Solar System observations and asteroid collision engineering influence political science and put pressure on the international legal framework. The text is intentionally written for a diverse scholarly and diplomatic audience in a style accessible to non-specialists and practitioners and can be read by those across diverse disciplinary backgrounds.

Leonid Storm Research

Petrus Matheus Marie Jenniskens
Leonid Storm Research Book PDF

Author : Petrus Matheus Marie Jenniskens
Publisher : Springer Science & Business Media
Page : 626 pages
File Size : 47,5 Mb
Release : 2000-11-30
Category : Science
ISBN : 0792367383

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Leonid Storm Research by Petrus Matheus Marie Jenniskens Pdf

This excellent overview will appeal to all researchers who have an interest in Leonid showers. It contains over forty research papers that present some of the first observational results of the November 1999 Leonid meteor storm, the first storm observed by modern observing techniques.

The Asteroid Threat

William E. Burrows
The Asteroid Threat Book PDF

Author : William E. Burrows
Publisher : Prometheus Books
Page : 207 pages
File Size : 51,5 Mb
Release : 2014-06-10
Category : Science
ISBN : 9781616149147

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The Asteroid Threat by William E. Burrows Pdf

Presents a realistic, workable plan for defusing a potentially lethal threat from a rogue asteroid or comet. The explosion of a large meteor over Chelyabinsk, Siberia, in February 2013 is just the latest reminder that planet Earth is vulnerable to damaging and potentially catastrophic collisions with space debris of various kinds. In this informative and forward-looking book, veteran aerospace writer William E. Burrows explains what we can do in the future to avoid far more serious impacts from "Near-Earth Objects" (NEOs), as they are called in the planetary defense community. The good news is that humanity is now equipped with the advanced technology necessary to devise a long-term strategy to protect the planet. Burrows outlines the following key features of an effective planetary defense strategy: * A powerful space surveillance system capable of spotting a serious threat from space at least twenty-five years in advance * A space craft "nudge" that would throw a collision-course asteroid off target long before it poses the threat of imminent impact * A weapons system to be used as a last-ditch method to blast an NEO should all else fail. The author notes the many benefits for world stability and increasing international cooperation resulting from a united worldwide effort to protect the planet. Combining realism with an optimistic can-do attitude, Burrows shows that humanity is capable of overcoming a potentially calamitous situation.