But not all episodes flowed as well for me from beginning to end.
For example, "Sex in Space" is a sensational headline to get you to watch an episode about reproduction in space and space tourism. The content of the episode for the most part was great, discussing the difficulties that reproductive systems that have developed in an environment with gravity would face entering a microgravity environment. And the discussion of space tourism and a planned space cruise ship was interesting, since it focused on the commercial space race instead of government-sponsored space travel. But couldn't they have come up with a better title?
Overall, I think The Universe is an amazing series for space junkies like myself. It's great to once again become swept up in the enthusiasm and optimism of human travel in space and our ever-expanding knowledge of the universe around us. If you're interested in any of the space sciences, I'd encourage you to pick up The Universe: The Complete Season Three to learn some of the current thinking about space travel and beyond!