Share 'Russian Fireball Won't Be Last Surprise Asteroid Attack'
By Mike Wall | SPACE.com
The world will have to live with surprise asteroid attacks on the scale of Friday's Russian fireball, at least for a while.
The meteor that exploded over the Russian city of Chelyabinsk without warning Friday (Feb. 15), damaging hundreds of buildings and wounding more than 1,000 people, was caused by a space rock about 50 feet (15 meters) wide, researchers said.
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