Discuss this talk: 10 ways the world could end ( Stephen Petranek )
About this Talk
How might the world end? Stephen Petranek lays out the challenges that face us in the drive to preserve the human race forever. Will we be wiped out by an asteroid? Eco-collapse? How about a particle accelerator gone wild?
About Stephen Petranek
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... Read full bio »
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