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Overview: |
Catastrophes that Changed the Planets (S6E1)10/25/2011
Nemesis: The Sun's Evil Twin (S6E2)11/1/2011
How the Solar System was Made (S6E3)11/8/2011
Crash Landing on Mars (S6E4)11/22/2011
Worst Days on Planet Earth (S6E5)11/29/2011
UFO: The Real Deal (S6E6)12/13/2011
God and the Universe (S6E7)12/20/2011 |