Death from the Skies!

Asteroid impacts! Cometary debris! Extinction level events! These are the ways the world might end, and these are the topics of "Death from the Skies!", a scientifically-based but fun look at giant impacts from cosmic objects. Phil Plait - astronomer, author, and blogger- talks about how these events have shaped our history, how they may do so again, and why Hollywood always seems to get them wrong. And lest you think it's all doom and gloom, Plait also discusses how we might prevent the next great impact from ruining our whole day.