关键词：了解宇宙是如何运行的第三季 了解 宇宙 如何 运行 的第 第三 三季 emsp users guide
A users guide to the cosmos from the big bang to galaxies, stars, pl 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 详情 
