It Sounds Like A Hollywood Blockbuster: A Deadly Asteroid Is On A Collision Course With Earth. But In Reality, It's Only A Matter Of Time Before A Giant Space Rock Threatens To Wipe Out Civilization. An Asteroid Took Out The Dinosaurs Sixty-five Million Years Ago. Are We Next? This Eanalyzes The Threat And Explores The Many Ways--from A Nuclear Bomb To Ingenious New Technology
