Episode Details & Credits
| National Geographic Channel | National Geographic | Air Date: August 23, 2009 |
Season 6 Episodes
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S6:E25. Ancient Astronomers
Air Date: December 17, 2009
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S6:E24. Vesuvius Time Bomb
Air Date: December 10, 2009
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S6:E23. Countdown to Impact
Air Date: December 3, 2009
Seasons & Episodes
- Series Overview
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Season 9
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Season 9 Overview
Air Date: September 1, 2004
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Season 9 Overview
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Season 8
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Season 8 Overview
Air Date: January 13, 2011
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Season 8 Overview
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Season 7
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Season 7 Overview
Air Date: January 28, 2010
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Season 7 Overview
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Season 6
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Season 6 Overview
Air Date: February 5, 2009
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S6:E25. Ancient Astronomers
Air Date: December 17, 2009
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S6:E24. Vesuvius Time Bomb
Air Date: December 10, 2009
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S6:E23. Countdown to Impact
Air Date: December 3, 2009
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S6:E22. Dirty Bomb Attack
Air Date: November 12, 2009
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S6:E21. Earthquake Swarm
Air Date: November 5, 2009
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S6:E20. Incinerator Earth
Air Date: October 22, 2009
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S6:E19. Stephen Hawking's Universe
Air Date: August 23, 2009
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S6:E18. Living on the Moon
Air Date: July 19, 2009
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S6:E17. How the West Was Made
Air Date: July 16, 2008
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S6:E16. Tsumani from Outer Space
Air Date: July 9, 2009
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S6:E15. Secret World of Fireworks
Air Date: July 2, 2009
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S6:E14. Earth's Evil Twin
Air Date: June 25, 2009
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S6:E13. Twister Outbreak
Air Date: June 11, 2009
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S6:E12. Anatomy of a Hurricane
Air Date: June 4, 2009
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S6:E11. Earth's Crust
Air Date: May 7, 2009
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S6:E10. How to Kill a Planet
Air Date: April 23, 2009
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S6:E9. Great Lakes
Air Date: April 2, 2009
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S6:E8. Monster Black Holes
Air Date: March 26, 2009
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S6:E7. Death of a Star
Air Date: March 12, 2009
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S6:E7. Five Years on Mars
Air Date: August 3, 2008
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S6:E6. Journey to Jupiter
Air Date: March 12, 2008
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S6:E5. The Death of Earth
Air Date: March 11, 2009
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S6:E4. Ice Age Meltdown
Air Date: March 9, 2009
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S6:E3. Birth of the Oceans
Air Date: March 5, 2009
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S6:E2. Super Diamonds
Air Date: February 26, 2009
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S6:E1. Solar Storm
Air Date: February 5, 2009
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Season 6 Overview
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Season 5
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Season 5 Overview
Air Date: February 11, 2008
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Season 5 Overview
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Season 4
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Season 4 Overview
Air Date: January 31, 2007
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Season 4 Overview
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Season 3
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Season 3 Overview
Air Date: January 15, 2006
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Season 3 Overview
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Season 2
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Season 2 Overview
Air Date: January 5, 2005
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Season 2 Overview
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Season 1
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Season 1 Overview
Air Date: September 15, 2004
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Season 1 Overview