A circular hole in the ice of Chebarkul Lake where a meteor reportedly struck the lake near Chelyabinsk, Russia, Friday. A meteor streaked across the sky and exploded over Russia’s Ural Mountains with the power of an atomic bomb, its sonic blasts shattering countless windows and injuring nearly 1,000 people. (AP Photo)
A circular hole in the ice of Chebarkul Lake where a meteor reportedly struck the lake near Chelyabinsk, Russia. (AP Photo)
In this combo made from frame grabs from dashboard camera video, a meteor streaks through the sky over Chelyabinsk. With a blinding flash and a booming shock wave, the meteor blazed across the western Siberian sky Friday and exploded with the force of 20 atomic bombs. (AP Photo/AP Video)
In this frame grab made from dashboard camera video, a meteor streaks through the sky over Chelyabinsk, Friday. (AP Photo/AP Video)
In this frame grab made from dashboard camera video, a meteor, upper left, streaks through the sky over Chelyabinsk. (AP Photo/AP Video)
A local resident repairs a window broken by a shock wave from a meteor explosion in Chelyabinsk. A meteor that scientists estimate weighed 10 tons (11 tons) streaked at supersonic speed over Russia's Ural Mountains on Friday (AP Photo/Boris Kaulin)
Cars pass by a zinc factory building with it's roof collapsed in Chelyabinsk , Friday. There was no immediate clarification of whether the collapse was caused by meteorites or by a shock wave from one of the explosions.(AP Photo/Boris Kaulin)
In this photo provided by E1.ru a meteorite contrail is seen over a vilage of Bolshoe Sidelnikovo 50 km of Chelyabinsk on Friday. (AP Photo/ Nadezhda Luchinina, E1.ru)
In this photo provided by Chelyabinsk.ru a meteorite contrail is seen over Chelyabinsk on Friday. (AP Photo/Chelyabinsk.ru)
In this 1953 file photo, trees lie strewn across the Siberian countryside 45 years after a meteorite struck the Earth near Tunguska, Russia. The 1908 explosion is generally estimated to have been about 10 megatons; it leveled some 80 million trees for miles near the impact site. The meteor that streaked across the Russian sky Friday, is estimated to be about 10 tons. It exploded with the power of an atomic bomb over the Ural Mountains, about 5,000 kilometers (3,000 miles) west of Tunguska. (AP Photo, File)
In this photo provided by Chelyabinsk.ru municipal workers repair damaged electric power circuit outside a zinc factory building with about 600 square meters of a roof collapsed after a meteorite exploded over in Chelyabinsk region on Friday. (AP Photo/ Oleg Kargapolov, Chelyabinsk.ru)