The trail of a falling object is seen above the Urals city of Chelyabinsk February 15, 2013, in this picture. The meteor explosion over Russia that injured more than 500 people and damaged hundreds of ...

The trail of a falling object is seen above the Urals city of Chelyabinsk February 15, 2013, in this picture. The meteor explosion over Russia that injured more than 500 people and damaged hundreds of ...