A translation from German of a 1929 treatise by the author. Deals with the problem of the space travel. Expresses ideas about rocketry and space travel. Extensive treatment of the engineering aspects of a space station. Extensive bibliography. 100 drawings.

Safe Passage: Astronaut Care for Exploration Missions sets forth a vision for space medicine as it applies to deep space voyage. As space missions increase in duration from months to years and extend well beyond Earth's orbit, so will the attendant risks of working in these extreme and isolated environmental conditions. Hazards to astronaut health range from greater radiation exposure and loss of bone and muscle density to intensified psychological stress from living with others in a confined space. Going beyond the body of biomedical research, the report examines existing space medicine clinical and behavioral research and health care data and the policies attendant to them. It describes why not enough is known today about the dangers of prolonged travel to enable humans to venture into deep space in a safe and sane manner. The report makes a number of recommendations concerning NASA's structure for clinical and behavioral research, on the need for a comprehensive astronaut health care system and on an approach to communicating health and safety risks to astronauts, their families, and the public.

More than four decades have passed since a human first set foot on the Moon. Great strides have been made in our understanding of what is required to support an enduring human presence in space, as evidenced by progressively more advanced orbiting human outposts, culminating in the current International Space Station (ISS). However, of the more than 500 humans who have so far ventured into space, most have gone only as far as near-Earth orbit, and none have traveled beyond the orbit of the Moon. Achieving humans' further progress into the solar system had proved far more difficult than imagined in the heady days of the Apollo missions, but the potential rewards remain substantial. During its more than 50-year history, NASA's success in human space exploration has depended on the agency's ability to effectively address a wide range of biomedical, engineering, physical science, and related obstacles-an achievement made possible by NASA's strong and productive commitments to life and physical sciences research for human space exploration, and by its use of human space exploration infrastructures for scientific discovery. The Committee for the Decadal Survey of Biological and Physical Sciences acknowledges the many achievements of NASA, which are all the more remarkable given budgetary challenges and changing directions within the agency. In the past decade, however, a consequence of those challenges has been a life and physical sciences research program that was dramatically reduced in both scale and scope, with the result that the agency is poorly positioned to take full advantage of the scientific opportunities offered by the now fully equipped and staffed ISS laboratory, or to effectively pursue the scientific research needed to support the development of advanced human exploration capabilities. Although its review has left it deeply concerned about the current state of NASA's life and physical sciences research, the Committee for the Decadal Survey on Biological and Physical Sciences in Space is nevertheless convinced that a focused science and engineering program can achieve successes that will bring the space community, the U.S. public, and policymakers to an understanding that we are ready for the next significant phase of human space exploration. The goal of this report is to lay out steps and develop a forward-looking portfolio of research that will provide the basis for recapturing the excitement and value of human spaceflight-thereby enabling the U.S. space program to deliver on new exploration initiatives that serve the nation, excite the public, and place the United States again at the forefront of space exploration for the global good.

Space is again in the headlines. E-billionaires Jeff Bezos and Elon Musk are planning to colonize Mars. President Trump wants a "Space Force" to achieve "space dominance" with expensive high-tech weapons. The space and nuclear arms control regimes are threadbare and disintegrating. Would-be asteroid collision diverters, space solar energy collectors, asteroid miners, and space geo-engineers insistently promote their Earth-changing mega-projects. Given our many looming planetary catastrophes (from extreme climate change to runaway artificial superintelligence), looking beyond the earth for solutions might seem like a sound strategy for humanity. And indeed, bolstered by a global network of fervent space advocates-and seemingly rendered plausible, even inevitable, by oceans of science fiction and the wizardly of modern cinema-space beckons as a fully hopeful path for human survival and flourishing, a positive future in increasingly dark times. But despite even basic questions of feasibility, will these many space ventures really have desirable effects, as their advocates insist? In the first book to critically assess the major consequences of space activities from their origins in the 1940s to the present and beyond, Daniel Deudney argues in Dark Skies that the major result of the "Space Age" has been to increase the likelihood of global nuclear war, a fact conveniently obscured by the failure of recognize that nuclear-armed ballistic missiles are inherently space weapons. The most important practical finding of Space Age science, also rarely emphasized, is the discovery that we live on Oasis Earth, tiny and fragile, and teeming with astounding life, but surrounded by an utterly desolate and inhospitable wilderness stretching at least many trillions of miles in all directions. As he stresses, our focus must be on Earth and nowhere else. Looking to the future, Deudney provides compelling reasons why space colonization will produce new threats to human survival and not alleviate the existing ones. That is why, he argues, we should fully relinquish the quest. Mind-bending and profound, Dark Skies challenges virtually all received wisdom about the final frontier.

Examines the debate over whether the United States should continue putting money into its space program.

In 1958, mankind's centuries-long flirtation with space flight became a torrid love affair. For a decade, tens of millions of people were enraptured -- first, by the U.S.-Soviet race to the moon, and finally, as America outstripped its rival, by Project Apollo alone. It is now more than three decades since the last man walked on the moon...more time than between the first moonwalk and the beginning of World War II. Apollo did not, as had been promised by a generation of visionaries, herald the beginning of the Space Age, but its end. Or did it? Project Apollo, like a cannonball, reached its apogee and returned to earth, but the trajectory of that return was complex. America's atmosphere -- its economic, scientific, and cultural atmosphere -- made for a very complicated reentry that produced many solutions to the trajectory problem. Rocket Dreams is about those solutions...about the places where the space program landed. In Rocket Dreams, an extraordinarily talented young writer named Marina Benjamin will take you on a journey to those landing sites. A visit with retired astronauts at a celebrity autograph show is a starting point down the divergent paths taken by the pioneers, including Edgar Mitchell, founder of the "church" of Noëtic Sciences. Roswell, New Mexico is a landing site of a different order, the "magnetic north" of UFO belief in the United States -- a belief that began its most dramatic growth precisely at the time that the path of the space program began its descent. In the vernacular, the third law of motion states that what goes up, must come down. Thus the tremendous motive force that energized the space program didn't just vanish; it was conserved and transformed, making bestsellers out of fantasy literature, spawning Gaia, and giving symbolism to the environmental movement. Everything from the pop cultural boom in ufology to the worldwide Search for Extra-Terrestrial Intelligence (SETI) feeds on the energy given off by America's leap toward space. Rocket Dreams is an eloquent tour of this Apollo-scarred landscape. It is also an introduction to some of the most fascinating characters imaginable: Some long dead, like the crackpot visionary Alfred Lawson, who saw in space flight a new stage of human evolution ("Alti-Man"), or Robert Goddard, the father of rocketry, whose workshop in Roswell stands only half a mile from shops selling posters of alien visitors. Others are very much alive -- like Stewart Brand, creator of the Whole Earth Catalog and partner with Gerard O'Neill in the drive to build free-floating space colonies, and SETI astronomer Seth Shostak, who has spent decades listening to the skies, hoping for the first contact with another intelligent species. Perceptive, original, and wonderfully written, informed by history, science, and an acute knowledge of popular culture, Rocket Dreams is a brilliant book by a remarkable talent.