简介 EP01 改变行星的大灾难(Catastrophes that Changed the Planets) EP02 太阳的邪恶双子星 涅墨西斯(Nemesis: The Sun's Evil Twin) EP03 太阳系的形成(How the Solar System was Made) EP04 迫降火星(Crash Landing on Mars) EP05 地球的灾难时刻(Worst Days on Planet Earth) EP06 不明飞行物的真面目(UFO: The Real Deal) EP07 宇宙中的上帝(God and the Universe)