In this photo provided by Chelyabinsk, a meteorite contrail is seen over Chelyabinsk on Friday 15, 2013. The meteor streaked across the sky of Russia's Ural Mountains on Friday morning, causing sharp explosions and reportedly injuring around 100 people, including many hurt by broken glass. (credit: Chelyabinsk.ru)

Damaged caused after a meteorite passed above the Urals city of Chelyabinsk February 15, 2013. More than 500 people were injured when a meteorite shot across the sky and exploded over central Russia on Friday, sending fireballs crashing to Earth, shattering windows and damaging buildings. (credit: Chelyabinsk Region Interior Ministry/Handout)

Damaged caused after a meteorite passed above the Urals city of Chelyabinsk February 15, 2013. More than 500 people were injured when the meteorite shot across the sky and exploded over central Russia on Friday, sending fireballs crashing to Earth, shattering windows and dmaging buildings. (credit: Chelyabinsk.ru)

Damaged caused after a meteorite passed above the Urals city of Chelyabinsk, is seen in this picture provided by www.chelyabinsk.ru and takewn Friday February 15, 2013. More than 500 people were injured when the meteorite shot across the sky and exploded over central Russia on Friday, sending fireballs crashing to Earth, shattering windows and dmaging buildings. (credit: Chelyabinsk.ru)

In this photo provided by Chelyabinsk.ru municipal workers repair damaged electric power circuit outside a zinc facotry building with about 600 square meters (600 square feet) of a roof collapsed after a meteorite exploded over in Chelyabinsk region on Friday 15, 2013. A meteor streaked across the sky of Russia's Ural Mountains on Friday morning, causing sharp explosions and reportedly injuring around 100 people, including manyhurt by broken glass. (credit: Chelyabinsk.ru)

The trail of a falling object seen above the Urals of Chelyabinsk February 15, 2013 in this picture provided by www.chelyabinsk.ru. About 400 people were injured when a meteorite shot across the sky in central Russia on Friday sending fireballs crashing to Earth, smashing windows and setting off car alarms. (credit: Chelyabinsk.ru)

A Russian policewoman works near an ice hole, said by the Interior Ministry Department for Chelyabinsk February 15, 2013. The meteor streaked across the sky and exploded over central Russia on Friday, sending fireballs crashing to Earth which shattered windows and damaged buildings, injuring more than 500 people. (credit: Chelyabinsk Region Interior Ministry/Handout)

Asteroid Field

An artist's rendering of an asteroid field (CBS)

An artist's rendering of an asteroid field (CBS)

Meteor Image

This surveillance image shows a meteor streaking across the sky in Russia. (CBS)

Russia Meteor

Video posted on YouTube shows a large meteor streaking across the sky above Russia on February 15, 2013. (CBS)

Video posted on YouTube shows a large meteor streaking across the sky above Russia on February 15, 2013. (CBS)

Meteor

A man in Moscow looks at a computer screen displaying a picture reportedly taken in the Urals city of Chelyabinsk on February 15, 2013, showing the trail of a meteorite above a residential area of the city. A heavy meteor shower rained down today on central Russia, sowing panic as the hurtling space debris smashed windows and injured dozens of stunned locals, officials said. (YURI KADOBNOV/AFP/Getty Images)