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Season 4, episode 14. This player now records resume state for the active profile so browse, account, and detail pages can bring you back here quickly.

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S4 E14

The Red Planet

NOVA traces 300 years of speculation, investigation and discovery that have centered on Mars—particularly the theory that the planet could support life. Questions raised by NASA's 1976 Viking mariner missions about how the vast canyons were formed are also explored.

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Season 4

Back to series detail

Episode 1: Hitler's Secret Weapon

Episode 2: The Hot Blooded Dinosaurs

Episode 3: What Price Coal?

Episode 4: The Sunspot Mystery

Episode 5: The Plastic Prison

Episode 6: Incident at Brown's Ferry

Episode 7: Bye Bye Blackbird

Episode 8: The Pill for the People

Episode 9: The Gene Engineers