A users guide to the cosmos from the big bang to galaxies, stars, planets and moons. Where did it all come from and how does it all fit together. A primer for anyone who has ever looked up at the night sky and wondered. Episode 1 Sun Episode 2 End of the Universe Episode 3 Jupiter Episode 4 First Second Episode 5 Saturn Episode 6 Extinction剧情梳理 由爱美剧独家编辑整理，并且会持续更新...