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Tree Ring

Tree Ring Mystery Gets Surprising Cosmic Explanation

Posted 01.22.2013 | Science

By: Clara Moskowitz Published: 01/21/2013 03:55 PM EST on SPACE.com More than 1,200 years ago, some mysterious event was recorded in tree rings...

WATCH: Record Player Plays Tree Rings

Posted 03.27.2012 | Science

Tree Rings 'Played' By Unusual Record Player (VIDEO)