Exploration Of Near Earth Objects
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Exploration Of Near Earth Objects
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 1998-05-04
Exploration Of Near Earth Objects 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 1998-05-04 with Science categories.
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
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Author : Donald K. Yeomans
language : en
Publisher: Princeton University Press
Release Date : 2016-11-08
Near Earth Objects written by Donald K. Yeomans and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-08 with Science categories.
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.
Asteroids
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Author : Viorel Badescu
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-07-03
Asteroids written by Viorel Badescu 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 2013-07-03 with Technology & Engineering categories.
The Earth has limited material and energy resources while these resources in space are virtually unlimited. Further development of humanity will require going beyond our planet and exploring of extraterrestrial resources and sources of unlimited power. Thus far, all missions to asteroids have been motivated by scientific exploration. However, given recent advancements in various space technologies, mining asteroids for resources is becoming ever more feasible. A significant portion of asteroids value is derived from their location; the required resources do not need to be lifted at a great expense from the surface of the Earth. Resources derived from Asteroid not only can be brought back to Earth but could also be used to sustain human exploration of space and permanent settlements in space. This book investigates asteroids' prospective energy and material resources. It is a collection of topics related to asteroid exploration, and utilization. It presents past and future technologies and solutions to old problems that could become reality in our life time. The book therefore is a great source of condensed information for specialists involved in current and impending asteroid-related activities and a good starting point for space researchers, inventors, technologists and potential investors. Written for researchers, engineers, and businessmen interested in asteroids' exploration and exploitation. Keywords: Asteroids, Asteroid exploration, Asteroid exploitation, Energy sources, Space Resources, Material Resources, In-Situ Resource Utilization, Mining
Near Earth Objects
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Author : Leon Sinclair
language : en
Publisher:
Release Date : 2016
Near Earth Objects written by Leon Sinclair and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with SCIENCE categories.
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.
Near Earth Objects Our Celestial Neighbors Iau S236
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Author : Andrea Milani
language : en
Publisher: Cambridge University Press
Release Date : 2007-05-24
Near Earth Objects Our Celestial Neighbors Iau S236 written by Andrea Milani 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 2007-05-24 with Science categories.
Near Earth Objects (NEOs), asteroids and comets, are the closest neighbors of the Earth-Moon system. They allow research not yet possible on more distant bodies. The IAU Symposium 236 focused on the specific observation and modeling techniques for NEOs, including radar, exploration by spacecraft, measurement of non-gravitational perturbations; also on the next generation surveys expected to increase a hundred-fold the NEO discovery rate. With data from first generation NEO surveys, we now understand how they formed and evolve, dynamically and physically, opening a window on the universal astrophysical phenomenon of collision, leaving clear markings on the surfaces of planets, including the Earth. NEOs with orbits crossing that of the Earth are also a source of impact risks and potential NEO collisions with the Earth represent a long term threat. Mankind has to put in place a chain of mitigating actions; NEO astronomers have successfully put in place the first link.
Asteroid And Comet Exploration
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Author : Gustaf Arrhenius
language : en
Publisher:
Release Date : 1973
Asteroid And Comet Exploration written by Gustaf Arrhenius and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Asteroids categories.
Exploration of Venus, Mars, and the Moon have had two major scientific objectives. One was to clarify the processes which control planetary evolution. The fulfillment of this purpose, although far from complete, was eminently successful in generating entirely new perspectives on the growth and differentiation of earth. The second objective, particularly prominent in the planning of the lunar exploration, was to augment the understanding of the virtually unknown preplanetary history of the solar system. This would include the fundamental questions of the origin, emplacement, and state of matter gathered around the sun and some planets. Preplanetary history also inquires into the problems of fractionation, condensation, and non-gravitation aggregation of circumsolar and circumplanetary matter.
Near Earth Object Surveys And Hazard Mitigation Strategies
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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.
Exploring Our Solar System
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Author : United States. Congress. House. Committee on Science, Space, and Technology (2011). Subcommittee on Space
language : en
Publisher:
Release Date : 2015
Exploring Our Solar System written by United States. Congress. House. Committee on Science, Space, and Technology (2011). Subcommittee on Space and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Deep space categories.
Near Earth Objects
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Author : John L. Remo
language : en
Publisher:
Release Date : 1997
Near Earth Objects written by John L. Remo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Science categories.
The primary focus of 47 papers (from an April 1995 meeting) is directed toward the need for gathering and interpreting scientific data to understand the Earth's past history, evaluate current astronomical observations, and outline future exploration missions to NEOs. Sections on astronomy, earth and
The Future Of Human Space Exploration
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Author : Giovanni Bignami
language : en
Publisher: Springer
Release Date : 2016-06-30
The Future Of Human Space Exploration written by Giovanni Bignami and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-30 with Social Science categories.
For several decades it has been widely accepted that human space exploration is the exclusive domain of government agencies. The cost of performing such missions, estimated in multiple reports to amount to hundreds of billions dollars over decades, was far beyond what private entities could afford. That arrangement seems to be changing. Buoyed by the success of its program to develop commercial cargo capabilities to support the International Space Station, NASA is becoming increasingly open to working with the private sector in its human space exploration plans. The new private-public partnership will make 'planet hopping' feasible. This book analyses the move towards planet hopping, which sees human outposts moving across the planetary dimensions, from the Moon to Near-Earth Asteroids and Mars. It critically assesses the intention to exploit space resources and how successful these missions will be for humanity. This insightful and accessible book will be of great interest to scholars and students of space policy and politics, international studies, and science and technology studies.