Deflecting Killer Asteroids Away From Earth: How We Could Do It | Asteroid 2005 YU55, Asteroids & Near-Earth Objects | Asteroid Impact & Mass Extinction | Space.com

Deflecting Killer Asteroids Away From Earth: How We Could Do It Asteroid 2005 YU55, Asteroids & Near-Earth Objects Asteroid Impact & Mass Extinction Space.com

We need to make sure we can rise to the challenge when a big, threatening asteroid shows up on our radar, Schweickart and Nye said. Civilization's very survival depends on it.
"If there is a community of intelligent life out in the universe ... those intelligent beings will have already conquered this challenge," Schweickart said. "Our entrance exam to that community of intelligent life is to pass this test."