No one saw the Chelyabinsk meteor of February 15, 2013 coming--the largest asteroid to strike Earth in over a century. Just after sunrise on a sunny winter's day, a 20-meter, 13,000-ton asteroid struck the atmosphere over the Ural Mountains in Russia at a speed of more than 18 km/s.
No one saw the Chelyabinsk meteor of February 15, 2013 coming--the largest asteroid to strike Earth in over a century. Just after sunrise on a sunny winter's day, a 20-meter, 13,000-ton asteroid struck the atmosphere over the Ural Mountains in Russia at a speed of more than 18 km/s.
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