1: How the Universe Works Saturn's Darkest Secrets

2: How the Universe Works Dark Secrets of Alien Suns

3: How the Universe Works Pluto's Darkest Secrets

4: How the Universe Works Mysteries of the Moon - Part 1

5: How the Universe Works Mysteries of the Moon - Part 2

6: How the Universe Works Universe's Greatest Mysteries

7: How the Universe Works Life and Death of Stars

8: How the Universe Works Secrets of the Giants

9: How the Universe Works Dark Side of the Big Bang

10: How the Universe Works Earth's Cosmic Journey

12: How the Universe Works How to Build A Planet

13: How the Universe Works Moon