Slightly redundant. A collection of essays, speeches, columns, interview transcripts and, for the love of giant black hole at the center of the galaxy, tweets from Tyson. It gets repetitive very fast, unfortunately, and is more focused on space advocacy, in the form illustratory histories of the space race, earnest all-American entreaties about soliloquies about destiny and exploration, half-formed economic points and entreaties to please study maths more, kids. All of which is fair enough, but not strictly terrible interesting. Here and there are occasional bits on science or various things that have been or will be sent into space and how they work or don't work, and that's pretty cool. More of that, please.