Professor Cox explains well the vast universe that is surrounding us. He gives good exemples to illustrate what he says, and he always refers to the earth as a starting point for the topics he teaches us. It's well done, but a bit slow. The part where he explains what are the features that made life possible on earth is most interesting, astonishing to a certain point. But to me, professor Cox is not as good as professor Stewart, who is our host on a few BBC earth blu-rays, including India and How the Earth Made Us, which are superior, the former being a little bit heavy in content-not for everyone. Also consider Universe TV series in blu-ray, available from Amazon. Very interesting. Final words, good documentary to owne for the point of view of the earth in the universe. Recommended.