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Why Didn't We See It Coming

Why didn't we know meteor that exploded over Russia was coming?

Why didn't we know meteor that exploded over Russia was coming?

The 150-foot-wide meteor that flew by Earth Friday and the smaller one that exploded over Russia hours before were too small to be easily detected. They are not even targets in NASA's surveillance of potentially hazardous objects.

February 16, 2013 12:00 am Video Related Loading…

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