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Stephen Petranek:
Stephen Petranek faz contagem regressiva para o Armagedon

TED2002 · 29:42 · Filmed Feb 2002
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Como o mundo poderia terminar? Stephen Petranek coloca os desafios que enfrentamos no desejo de preservar a raça humana. Seremos varridos por um asteroide? Colapso ecológico? E se um acelerador de partículas enlouquecer?

pin This talk was presented at an official TED conference, and was featured by our editors on the home page.
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When he was editor-in-chief of Discover magazine, Stephen Petranek tangled with questions as big as the universe. Here he confronts the biggest question on the planet: What are the 10 most likely ways that life on the Earth could end? Full bio

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