I’m a big Hadfield fan, but this was not the book for me. A mystery set in space, kind of. With astronauts, kind of. During the Cold War when the big enemies were the Russians. Too much engineering detail, like way too much. And not enough women, they’re mostly used as set dressing (and as comfort to have the book wrap up nice at the end) which I didn’t appreciate. The book is based on some real-life stuff and some totally made up stuff, and I wish I’d known more about what was real and what was made up before I’d read it, might have been more interesting. Skip it unless space data minutia is your thing.