This book is difficult to review. I gave it three stars because while the content was good, it had very little to do about the title and supposed premise of the book.

The first third is mainly the authors opinions on American at war in recent decades.

The middle portion goes into extreme detail about the use of the telescope in exploration and reconnaissance which dribbles into satellites.

The last third was mostly about the modern day space race and how the world spends too much on defense.

Periodically we get a glimpse of astrophysics and the occasional fun fact however there is very little about the science of astrophysics in the military and alot about general astronomical history and a few political diatribes.

Not Tyson's strongest showing but not an unreadable book.