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Fallout from the Russian fireball encircled Earth, research shows

By The Christian Science Monitor
Tuesday, August 20, 2013 0:58 EDT
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This polar projection of Earth shows atmospheric particles encircling the globe a week after the February 15 blast over central Russia (white dot). Fast-moving particles (red) returned there within four days, and within seven days, they had ‘lapped’…

 
 
 
 
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