The new book by the famous American astrophysicist Neil deGrasse Tyson, co-authored with writer Avis Lang, is devoted to exploring the long-standing relationship between science and the military. What do astrophysicists and military specialists have in common? Where do their interests intersect? How does science serve war? As it turns out, many astrophysics discoveries and achievements—such as multispectral detection, range, tracking, visualization, nuclear fusion, and access to space—are not just scientific breakthroughs, but tools in the hands of war. Covering the period from early celestial navigation to satellite wars, Neil Tyson examines the intersections of science, engineering, industry, and power.