Stephen Petranek:

TED2002 · 29:42 · Filmed Feb 2002
Subtitles available in 18 languages
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Stephen Petranek: 史蒂芬·潘特奈克的世界末日倒计时
29:42 · Filmed February 2002 at TED2002 · Subtitles available in 18 languages


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
This talk was presented at an official TED conference, and was featured by our editors on the home page.



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