The new book by the famous American astrophysicist Neil deGrasse Tyson, co-written with Avis Lang, is devoted to the study of the long-term relationship between science and the army. What unites astrophysicists and military specialists, what are their points of intersection, and how does science serve war? As it turns out, many of the discoveries and advances of astrophysics, such as multispectral sensing, ranging, tracking, imaging, nuclear fusion, and space access, for example, are not just scientific discoveries, but tools in the hands of war. Since the period of early celestial navigation and ending with satellite wars, Neil Tyson explores the intersections of science, technology, industry and power.