The meteor that exploded over the steppes of southwestern Russia sent a low-frequency rumble bouncing through the Earth, giving scientists new clues about the biggest cosmic intruder in a century.
via CNN.com - Top Stories http://edition.cnn.com/2013/02/27/world/europe/russia-meteor/index.html?eref=edition
via CNN.com - Top Stories http://edition.cnn.com/2013/02/27/world/europe/russia-meteor/index.html?eref=edition
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