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Out of print since 2006, this book is now available online. Click here! A base on the Moon, an expedition to Mars. . . . Some time in the near future, for scientific or cultural reasons, humanity will likely decide to pursue one of these fantastic ventures in space. How can we increase the scope and reduce the cost of these ambitious activities?The parts of the solar system that are most accessible from Earth--the Moon, the near-Earth asteroids, Mars and its moons--are rich in materials of great potential value to humanity. Resources of Near-Earth Space explores the possibilities both of utilizing these materials to produce propellants, structural metals, refractories, life-support fluids, and other materials on site to reduce the costs of space exploration, and of providing a source of materials and energy for our own planet that would not be environmentally destructive to Earth.This volume summarizes the present state of the art in attempts to realize these possibilities: identifying the resources, mining and processing, transportation, and economics. As a broad survey of a rapidly evolving field, it is intended as a technical introduction to the use of nonterrestrial materials for scientists, engineers, and industrial and governmental project managers who seek to make space more accessible.
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.
" ... Concise explanations and descriptions - easily read and readily understood - of what we know of the chain of events and processes that connect the Sun to the Earth, with special emphasis on space weather and Sun-Climate."--Dear Reader.
Science, engineering, and technology permeate nearly every facet of modern life and hold the key to solving many of humanity's most pressing current and future challenges. The United States' position in the global economy is declining, in part because U.S. workers lack fundamental knowledge in these fields. To address the critical issues of U.S. competitiveness and to better prepare the workforce, A Framework for K-12 Science Education proposes a new approach to K-12 science education that will capture students' interest and provide them with the necessary foundational knowledge in the field. A Framework for K-12 Science Education outlines a broad set of expectations for students in science and engineering in grades K-12. These expectations will inform the development of new standards for K-12 science education and, subsequently, revisions to curriculum, instruction, assessment, and professional development for educators. This book identifies three dimensions that convey the core ideas and practices around which science and engineering education in these grades should be built. These three dimensions are: crosscutting concepts that unify the study of science through their common application across science and engineering; scientific and engineering practices; and disciplinary core ideas in the physical sciences, life sciences, and earth and space sciences and for engineering, technology, and the applications of science. The overarching goal is for all high school graduates to have sufficient knowledge of science and engineering to engage in public discussions on science-related issues, be careful consumers of scientific and technical information, and enter the careers of their choice. A Framework for K-12 Science Education is the first step in a process that can inform state-level decisions and achieve a research-grounded basis for improving science instruction and learning across the country. The book will guide standards developers, teachers, curriculum designers, assessment developers, state and district science administrators, and educators who teach science in informal environments.
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.
Although deconstruction has become a popular catchword, as an intellectual movement it has never entirely caught on within the university. For some in the academy, deconstruction, and Jacques Derrida in particular, are responsible for the demise of accountability in the study of literature. Countering these facile dismissals of Derrida and deconstruction, Herman Rapaport explores the incoherence that has plagued critical theory since the 1960s and the resulting legitimacy crisis in the humanities. Against the backdrop of a rich, informed discussion of Derrida's writings--and how they have been misconstrued by critics and admirers alike--The Theory Mess investigates the vicissitudes of Anglo-American criticism over the past thirty years and proposes some possibilities for reform.
Earth has limited material and energy resources, while these resources are virtually unlimited in space. It is only a matter of time, before planetary resources are mined and used in-situ to sustain human and robotic exploration or returned to Earth for commercial gain. This book covers a number of aspects related to space resources. In particular, subjects related to mission concepts, exploration approaches, mining and extraction technologies, commercial potential, and regulatory aspects of space resources are covered in detail. This book is therefore a good resource for readers who seek background and deeper understanding of space resources related activities.
With a focus on China, the United States, and India, this book examines the economic ambitions of the second space race. The authors argue that space ambitions are informed by a combination of factors, including available resources, capability, elite preferences, and talent pool. The authors demonstrate how these influences affect the development of national space programs as well as policy and law.