W. Patrick McCray is professor of history at the University of California, Santa Barbara. He is the author of Giant Telescopes: Astronomical Ambition and the Promise of Technology.

"As the quality of amateur astronomical photography, given advances in electronic imaging and computer processing, begins to exceed the quality of images from the world's largest telescopes of decades ago, McCray's book provides an interesting and pleasant way to bring us back to an earlier age."---Jay Pasachoff, Phi Beta Kappa Key Reporter --- "McCray has given us a highly nuanced, eminently readable, and meticulously researched account of an unusual subject. . . . In addition to documenting an important scientific program for the first time, McCray's volume represents an excellent addition to an important body of work on the relationship between amateur and professional scientists."---Steven J. Dick, Isis --- "McCray successfully conveys a sense of their motivation, passion, and achievement through his presentation of lively materials from their scrapbooks, observation logs, and collections as well as personal interviews. . . . This book reminds us that the pursuit of science is a matter of state and society, in which we as citizens have rights and obligations to know and to participate."---Chihyung Jeon, Technology and Culture --- "This is a fascinating look at the dawn of the Space Age--and the ripple effect created by the former Soviet Union's launching of Sputnik 1 back in October 1958. However, the focus of this book is unique in that it tells the story of how the general public--from teenagers to amateur astronomers and others took part in eying for the first time an artificial satellite of the Earth." --- "This book is an excellent history of an important but little-known program that came into existence at the dawn of the space age. McCray clearly tells the story of how Operation Moonwatch recruited and trained ordinary people to spot and track satellites. . . . This excellent volume provides a good overview and includes extensive references for those who wish to delve deeper into the subject."---D.B. Mason, Choice --- "In Keep Watching the Skies! McCray succeeds in bringing back to life an era that few today will remember."---Richard Corfield, Physics World --- "[A] serious, scholarly work written in an easy informal style. For the first time this important part of space history has been documented; McCray's book really brings the players to life and is highly recommended."---Nick Quinn, Astronomy Now --- "Patrick McCray's book tells the story of [the] devoted 'Moonwatchers' as they embarked upon Operation Moonwatch, to carefully study early satellite activity. McCray's text is meticulous, well written and follows the stories of the fabled Moonwatchers. If you want to explore the fascinating task that this diverse worldwide ensemble of amateurs and professionals undertook, this book would be an excellent place to start."---Will Gater, BBC Focus Magazine --- "Keep Watching the Skies! is the story of the worldwide effort...by amateur astronomers...to monitor the artificial moon Sputnik 1 launched by the Soviet space programme. This book is a superb history."---Colin Pillinger, Times Higher Education --- "Patrick McCray reconstructs an era when the world was taking its baby steps into the space age. He views it through the eyes of amateur star-gazers who experienced the excitement of those Sputnik days by joining Moonwatch, a worldwide effort to track satellites. McCray went beyond the official documents, ferreting out records from several of the most effective team leaders, and spotlights these throughout his well-illustrated presentation. McCray's account is an important contribution towards preserving the history of a fascinating episode at the dawn of the space age. [A] genuine page-turner."---Owen Gingerich, Nature --- "At a time when very little was known about the ionosphere and upper atmosphere, armchair astronomers of all backgrounds turned out in the thousands to aid the scientific pursuit of knowledge; when the Soviet Union launched Sputnik in 1957, it was the Moonwatchers who provided the first observations to astronomers. McCray's history is full of fascinating individuals. This pop science takes a fascinating look at a fundamental, and almost-forgotten, moment in Space Age history."