At the Edge of Space

“Thompson brings the era to life, describing the triumph and tragedy of the pilots and technicians that worked on perhaps the country’s most ambitious Xplane testing program.”—Sky & Telescope

“Thompson is especially strong in describing the human dimension of the X-15 effort, enlivening the narrative with both heroic and humorous anecdotes.”—Air Power History

“Couldn’t put it down.”—U.S. Naval Institute Proceedings

“Thompson’s well-written history of the program captures the technical challenges, the camaraderie and, most of all, the high adventure of X-15 flight. Highly recommended.”—Publishers Weekly

“. . . a very worthwhile book.”—New Scientist