universetoday.com
Watch Live: Defending Earth from Asteroids - Universe Today
Live streaming video by Ustream We know that hundreds of thousands of asteroids orbit the Sun, and a very few have a high risk of striking Earth. There are also asteroids that haven’t been discovered yet that can surprise us, as evidenced by the explosion over Chelyabinsk, Russia, last February. This event was confirmation that … Continue reading "Watch Live: Defending Earth from Asteroids"