"The universe is both the ultimate frontier and the highest of high grounds," posit Neil deGrasse Tyson and Avis Lang. "Shared by both space scientists and space warriors, it's a laboratory for one and a battlefield for the other." Astrophysicists and military planners unavoidably overlap, because they care about many of the same things: multi-spectral detection, ranging, tracking, imaging, and access to space. Spanning basic celestial navigation and satellite-enabled warfare, this revisionist history takes a fresh look at the Space Race and the Cold War, and examines how the methods and tools of astrophysics have been enlisted in times of conflict—which seem to inspire innovation in a way that peace and quiet rarely do.