This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

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.

Space technology has an important role to play in shaping a sustainable future, employing both human and robotic spaceflight capabilities. But the U.S. civil space program focuses the majority of its resources on the traditional paradigm of sending humans to increasingly distant targets (the Moon, Mars, and beyond). Rather than picking the destinations first and figuring out the goals later, the book suggests that NASA’s spaceflight programs should primarily target the creation of advanced capabilities, especially space infrastructure in the Earth-Moon system, and facilitate a greater role for the commercial sector in this endeavor. This will bring direct benefits to Earth more quickly and at the same time enable steady progress in the exploration and development of the solar system. The narrative begins by examining space in the context of today’s globalized world. Globalization has been a good news/bad news story, and space technology has been an important factor in this process. New wealth and international collaboration have been generated, but so have new problems and old problems have accelerated and spread. If we make the right choices, space development can do more to provide solutions in the decades ahead. The work of noted space futurists of the Cold War era is reviewed, with particular attention to the question: Why have things turned out differently from what most experts predicted and most advocates expected? The NASA exploration program finds itself locked into the “Von Braun paradigm” of the 1950s, which focuses on human spaceflight to the Moon and Mars without adequately explaining the reasons for doing it. This situation is not well suited to the political, economic, and societal environment of the 21st century. At a time when long-term strategic thinking is needed to address enduring global issues, many forces drive us to short-term thinking. The most significant of these forces for the nation’s top decision-makers come from the election cycle, the budget cycle, and the news cycle. Their effects on the presidency, the Congress, and the bureaucracy are examined using examples from recent history and current practices. The emphasis is on the need to change the incentive structure to promote long-term thinking since big technology projects have multi-decade life cycles and are aimed at problems that are national and global in scope. This shift in thinking leads to a revised rationale for spaceflight for the coming decades that is more directly tied to societal needs and ambitions. Space development will require more resources than NASA—or even all of the world’s civilian space agencies combined—can devote to the effort. Partnership with the commercial sector will be essential. Will space commerce be the stimulus for moving out into the solar system? If so, will it contribute to improvement of life back on Earth at the same time? Space commerce is growing fast, but is still small compared to other major global industries. Possibilities and pitfalls are discussed, along with examples of the checkered history of public and private sector attempts to promote space commerce. Making wise choices that have implications lasting decades is a daunting challenge, even when there’s broad agreement on a course of action. The book includes a chapter that warns: be careful what you wish for. Real-world examples (including the space shuttle and space station) demonstrate the difficulties of long-term strategic planning, and two futuristic thought experiments provide further illustration. The chapter concludes by demonstrating the long-term repercussions of poor choices, citing a current problem that has proven hard to fix despite widespread recognition that it needs fixing: export control for space technologies. If 21st century reality is driving us toward a course of action different from that of the Apollo/Cold War era, what should it look like, and what rationale should drive it? Voices of authority and advocacy for space ex

The book presents a unique overview of activities in human spaceflight and exploration and a discussion of future development possibilities. It provides an introduction for the general public interested in space and would also be suitable for students at university. The book includes the basics of the space environment and the effects of space travel on the human body. It leads through the challenges of designing life support systems for spacecraft as wells as space suits to protect astronauts during extravehicular activities. Research being carried out by humans in Earth orbit is being brought into context to other forms of space exploration. Between the end of 2007 and May 2009 ESA, the European Space Agency, carried out an astronaut recruitment process. It was the first time that astronauts had been recruited newly to the corps since its creation in 1998 and the positions were open to citizens of all of the member states of ESA. Two of the contributors to this book participated in the selection process and hence contribute to a general discussion of how one carries out such a selection programme. The book concludes with one person’s experience of flying aboard the space shuttle on a mission to map planet Earth, bringing together topics taken up in earlier parts of the book.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Mars, the red planet named for the god of war, a mysterious dust-ridden place, is most like Earth in its climate and seasons. Of all the possible destinations in space to travel, Mars is the most likely for humans to reach. According to esteemed scientist Louis Friedman, it may be the only destination outside the moon to ever see human footprints. Far from diminishing our future in space, Human Spaceflight lays out a provocative future for human space travel. The noted aerospace engineer and scientist says that human space exploration will continue well into the future, but space travel by humans will stop at Mars. Instead, nanotechnology, space sails, robotics, biomolecular engineering, and artificial intelligence will provide the vehicles of the future for an exciting evolution not just of space travel but of humankind. Friedman has worked with agencies around the globe on space exploration projects to extend human presence beyond Mars and beyond the solar system. He writes that once we accept Mars as the only viable destination for humans, our space program on planet Earth can become more exciting and more relevant. Mars, he writes, will take hundreds, even thousands, of years to settle. During that time, humans and all our supporting technologies will evolve, allowing our minds to be present throughout the universe while our bodies stay home on Earth and Mars.

The U.S. human spaceflight program appears to be on an unsustainable trajectory. It is perpetuating the perilous practice of pursuing goals that do not match allocated resources. Space operations are among the most demanding and unforgiving pursuits ever undertaken by humans. It really is rocket science. Space operations become all the more difficult when means do not match aspirations. Such is the case today. The nation is facing important decisions on the future of human spaceflight. Will we leave the close proximity of low- Earth orbit, where astronauts have circled since 1972, and explore the solar system, charting a path for the eventual expansion of human civilization into space? If so, how will we ensure that our exploration delivers the greatest benefit to the nation? Can we explore with reasonable assurances of human safety? Can the nation marshal the resources to embark on the mission? Whatever space program is ultimately selected, it must be matched with the resources needed for its execution. How can we marshal the necessary resources? There are actually more options available today than in 1961, when President Kennedy challenged the nation to "commit itself to the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth." First, space exploration has become a global enterprise. Many nations have aspirations in space, and the combined annual budgets of their space programs are comparable to NASA's. If the United States is willing to lead a global program of exploration, sharing both the burden and benefit of space exploration in a meaningful way, significant accomplishments could follow. Actively engaging international partners in a manner adapted to today's multi-polar world could strengthen geopolitical relationships, leverage global financial and technical resources, and enhance the exploration enterprise. Second, there is now a burgeoning commercial space industry. If we craft a space architecture to provide opportunities to this industry, there is the potential-not without risk-that the costs to the government would be reduced. Finally, we are also more experienced than in 1961, and able to build on that experience as we design an exploration program. If, after designing cleverly, building alliances with partners, and engaging commercial providers, the nation cannot afford to fund the effort to pursue the goals it would like to embrace, it should accept the disappointment of setting lesser goals. Can we explore with reasonable assurances of human safety? Human space travel has many benefits, but it is an inherently dangerous endeavor. Human safety can never be absolutely assured, but throughout this report, safety is treated as a sine qua non. It is not discussed in extensive detail because any concepts falling short in human safety have simply been eliminated from consideration. How will we explore to deliver the greatest benefit to the nation? Planning for a human spaceflight program should begin with a choice about its goals-rather than a choice of possible destinations. Destinations should derive from goals, and alternative architectures may be weighed against those goals. There is now a strong consensus in the United States that the next step in human spaceflight is to travel beyond low-Earth orbit. This should carry important benefits to society, including: driving technological innovation; developing commercial industries and important national capabilities; and contributing to our expertise in further exploration. Human exploration can contribute appropriately to the expansion of scientific knowledge, particularly in areas such as field geology, and it is in the interest of both science and human spaceflight that a credible and well-rationalized strategy of coordination between them be developed. Crucially, human spaceflight objectives should broadly align with key national objectives.