Season 4 (2007)

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Glacier Meltdown
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January 31, 2007

Episode 1 of Season 4 premiered on January 31, 2007

Destructive Forces
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February 21, 2007

Episode 2 of Season 4 premiered on February 21, 2007

Stone Age Apocalypse
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February 28, 2007

Episode 3 of Season 4 premiered on February 28, 2007

Comets
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March 7, 2007

Episode 4 of Season 4 premiered on March 7, 2007

Prehistoric Americans
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March 14, 2007

Episode 5 of Season 4 premiered on March 14, 2007

Deep Space Probes
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March 27, 2007

Great distances and dangerous environments make robotic spacecraft the best way for scientists to explore our solar system. Acting...Read more

Dino Meteor
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April 12, 2007

Episode 7 of Season 4 premiered on April 12, 2007

Planet Storm
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April 26, 2007

Episode 8 of Season 4 premiered on April 26, 2007

Polar Apocalypse
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April 1, 2007

Episode 9 of Season 4 premiered on April 1, 2007

Killer Lakes
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May 3, 2007

Since the death of 1,700 people near a lake in Africa, scientists have uncovered a terrifying series of hazards in lakes across the world.

Ring of Fire
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August 2, 2007

Episode 11 of Season 4 premiered on August 2, 2007

Alien Safari
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August 9, 2007

With advanced technology in their hands, astronomers and scientists may now be capable of detecting extraterrestrial life in the u...Read more

Hyper Hurricanes
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October 18, 2007

Episode 13 of Season 4 premiered on October 18, 2007

Dangers of the Deep
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October 25, 2007

Episode 14 of Season 4 premiered on October 25, 2007

Solar Force
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October 30, 2007

Episode 15 of Season 4 premiered on October 30, 2007

Birth of the Solar System
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November 6, 2007

Thanks to new developments in the technology of astronomy, scientists have been able to collect new information, giving them clues...Read more

Hubble Trouble
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November 6, 2007

Episode 17 of Season 4 premiered on November 6, 2007