NOVA

自然 · 历史

S37 E13 Extreme Cave Diving

本集简介

A team of intrepid scientists journey into one of Earth's most dangerous and beautiful underwater frontiers.

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2010/02/02 S37 E12

Ghosts of Machu Picchu

Why did the Incas abandon their city in the clouds?

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2010/03/02 S37 E14

The Pluto Files

Take a cross-country journey with Neil deGrasse Tyson to explore the rise and fall of America's favorite planet.

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