An excellent book that has become one of my top three books on humankind's future in space in the near term. It starts out with an superb summary of human space travel thus far. That alone was a pleasure to read as it encompasses a lot of material in a very comprehensive manner. The book then switches gears and goes into exploring the very near term resources that surround Earth: the moon and near Earth asteroids. It keeps an eye on the economic feasibility of all of these explorations based on first principles: i.e. the potential resources vis-a-vis the fuel requirements that are needed and thus makes the case that space exploration can be "bootstrapped" even if we start with chemical propulsion to begin with. In the later chapters the book explores and illustrates the vast abundances of resources that are available to us in the Solar System (in particular the asteroid belt and Helium-3). Finally, it concludes with a firework: based on the (very conservative) numbers of resources that we know about it projects how one day hundreds of billions of people could potentially inhabit the Solar System while each living like 21st century billionaires quite easily. "Mining the Sky" is a powerful testament of what the human spirit might accomplish in the next couple of hundred years through further technological advances and by people who share John Lewis' vision of a brighter and abundant human future.
This is one of my favorites…every human should read it
Dr. Lewis without a doubt deserves to be one of the most influential leaders in space development. I found Mining the Sky by accident in a hometown book shop while in high school and bought it because I had a few dollars. Five years later, I'm 9 months away from becoming an Air Force space officer with an astronautics degree. This book is that impressive. This book is the clearest and accessible book on the economic impacts space will provide the human race to date. Most of its ideas aren't fanciful and can be easily imagined as maturing in the next 20-30 years or sooner, given an effort. Maybe even sooner, as at least one private company was inspired by Dr. Lewis' writings. Dr. Lewis' positive outlook is tempered by a realistic engineering and economic approach to space. Keep in mind this book is first and foremost about space industrialization, not exploration. A true space enthusaist should know that one cannot be without the other. Dr. Lewis could not have given a better general survey of whats out there. A brief addendum concerning other reviewers' criticisms. This book could be made much more technical. However, this book was meant to appeal to a large, nontechnical audience. For more information, see Dr. Lewis' earlier book (and parent to Mining the Sky) Resources of Near Earth Space. It is the standard text for space materials prospects. Mining the Sky is a toned down version of RoNES meant to explain to a layman (me, when I first read Mining) the opportunities that await those courageous enough to reach out. Thank you, Dr. Lewis. And everyone even remotely interested in space and mankinds future in it, READ THIS BOOK! Read more
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It's beautiful and impressive how well Lewis summarizes the history of space travel in the first chapters of his book, setting the stage for the main topic of his book. If you ever want to read a short but comprehensive summary of the history of American and Russian space pioneering, you will find it here as well.