Hollywood has long been enamored with end-of-the-world science fiction where asteroids play the leading role. But the reality is that asteroids did in fact lead to the end of the non-avian dinosaur era sixty-six million years ago. Could it happen again? How at risk is mankind and what steps are scientists taking to avert a potentially catastrophic collision? Robin George Andrews, author of "How to Kill an Asteroid," joins The Excerpt to discuss how scientists are working to literally save the planet.

Episode Transcript available here

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