Infographic of the Day: Perspective on Latest Russian Meteor Strike
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February 21, 2013 - 7:17am
A rock from space about 50 feet across (15 meters) and traveling about 44 times the speed of sound entered Earth's atmosphere early on 15 February 2013. The meteor disintegrated at an altitude of 13 to 31 miles (13 to 50 km), creating a massive shock wave that damaged hundreds of buildings and injured more than 1,000 people in the Chelyabinsk region. There was no advance warning before the meteor appeared in the sky as it came from the sun side of the earth where telescopes are not faced.
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