The U.S. scientific community has long led the world in research on such areas as public health, environmental science, and issues affecting quality of life. Our scientists have produced landmark studies on the dangers of DDT, tobacco smoke, acid rain, and global warming. But at the same time, a small yet potent subset of this community leads the world in vehement denial of these dangers. Merchants of Doubt tells the story of how a loose-knit group of high-level scientists and scientific advisers, with deep connections in politics and industry, ran effective campaigns to mislead the public and deny well-established scientific knowledge over four decades. Remarkably, the same individuals surface repeatedly - some of the same figures who have claimed that the science of global warming is "not settled" denied the truth of studies linking smoking to lung cancer, coal smoke to acid rain, and CFCs to the ozone hole. "Doubt is our product," wrote one tobacco executive. These 'experts' supplied it. Naomi Oreskes and Erik M. Conway, historians of science, roll back the rug on this dark corner of the American scientific community, showing how ideology and corporate interests, aided by a too-compliant media, have skewed public understanding of some of the most pressing issues of our era.

Although the Jet Propulsion Laboratory in Pasadena, California, has become synonymous with the United States' planetary exploration during the past half century, its most recent focus has been on Mars. Beginning in the 1990s and continuing through the Mars Phoenix mission of 2007, JPL led the way in engineering an impressive, rapidly evolving succession of Mars orbiters and landers, including roving robotic vehicles whose successful deployment onto the Martian surface posed some of the most complicated technical problems in space flight history. In Exploration and Engineering, Erik M. Conway reveals how JPL engineers' creative technological feats led to major breakthroughs in Mars exploration. He takes readers into the heart of the lab's problem-solving approach and management structure, where talented scientists grappled with technical challenges while also coping, not always successfully, with funding shortfalls, unrealistic schedules, and managerial turmoil. Conway, JPL's historian, offers an insider's perspective into the changing goals of Mars exploration, the ways in which sophisticated computer simulations drove the design process, and the remarkable evolution of landing technologies over a thirty-year period.

Erik M. Conway constructs an insightful history that focuses primarily on the political and commercial factors responsible for the rise and fall of American supersonic transport research programs. Conway charts commercial supersonic research efforts through the changing relationships between international and domestic politicians, government contractors, private investors, and environmentalists. He documents post--World War II efforts at the National Advisory Committee for Aeronautics, NASA, and the Defense Department to generate supersonic flight technologies; European and American attempts to commercialize these technologies during the 1950s and 1960s; environmental campaigns against SST technology in the 1970s; and subsequent attempts to revitalize supersonic technology at the end of the century.

"A concise and thoroughly fascinating history of the train wreck that was the U.S. supersonic civil transport programs." -- Air and Space Magazine

"Conway seems to have struck the right balance between the nuts-and-bolts of aircraft design and discussion of larger issues, particularly state support for advanced technology... An original and valuable contribution to the saga of a dream deferred." -- Technology and Culture

"Conway does an excellent job of explaining the nationalism inherent in supersonic transport during the Cold War and the domestic American politics surrounding the project." -- Isis

"Comprehensive and enjoyable... A cautionary tale of half-baked federal technology and economic policies high-jacking public funds for a concept aircraft that was an engineering boondoggle, a financial black hole, and an environmental fiend." -- History and Technology

"[Conway's]examination of the development of supersonic aviation and the various SST programs provides a fascinating internal look at how the technology developed, while also connecting that development with the issue of the larger meaning of technology in society." -- Journal of American History

Erik M. Conway serves as historian, Jet Propulsion Laboratory, Pasadena, California.

When darkness falls, storms rage, fog settles, or lights fail, pilots are forced to make "instrument landings," relying on technology and training to guide them through typically the most dangerous part of any flight. In this original study, Erik M. Conway recounts one of the most important stories in aviation history: the evolution of aircraft landing aids that make landing safe and routine in almost all weather conditions. Discussing technologies such as the Loth leader-cable system, the American National Bureau of Standards system, and, its descendants, the Instrument Landing System, the MIT-Army-Sperry Gyroscope microwave blind landing system, and the MIT Radiation Lab's radar-based Ground Controlled Approach system, Conway interweaves technological change, training innovation, and pilots' experiences to examine the evolution of blind landing technologies. He shows how systems originally intended to produce routine, all-weather blind landings gradually developed into routine instrument-guided approaches. Even so, after two decades of development and experience, pilots still did not want to place the most critical phase of flight, the landing, entirely in technology's invisible hand. By the end of World War II, the very concept of landing blind therefore had disappeared from the trade literature, a victim of human limitations.

This comprehensive volume explores the intricate, mutually dependent relationship between science and exploration—how each has repeatedly built on the discoveries of the other and, in the process, opened new frontiers. A simple question: Which came first, advances in navigation or successful voyages of discovery? A complicated answer: Both and neither. For more than four centuries, scientists and explorers have worked together—sometimes intentionally and sometimes not—in an ongoing, symbiotic partnership. When early explorers brought back exotic flora and fauna from newly discovered lands, scientists were able to challenge ancient authorities for the first time. As a result, scientists not only invented new navigational tools to encourage exploration, but also created a new approach to studying nature, in which observations were more important than reason and authority. The story of the relationship between science and exploration, analyzed here for the first time, is nothing less than the history of modern science and the expanding human universe.