NOVA

自然 · 历史

S35 E3 Marathon Challenge

本集简介

Explore what it takes—physically and mentally—for novice runners to make it through a classic test of endurance.

上一集

2007/10/16 S35 E2

Ghost in Your Genes

Experts investigate how a mysterious "second genome" helps determine our biological fates.

下一集

2007/11/07 S35 E4

Sputnik Declassified

Top-secret documents rewrite the history of the famous satellite and the early space race.

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