Since the start of the 21st century, dozens of incoming asteroids have slammed into Earth, some of them packing far more energy than a city-destroying atomic bomb, a new animation illustrates.
http://www.space.com/25590-asteroid-imp ... pid=557163
Powerful Asteroids Strike Earth with Surprising Frequency (
Powerful Asteroids Strike Earth with Surprising Frequency (
Good video showing just how often this kind of thing happens