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June 17, 2012

Ancient cedar trees hold 8th-century mystery

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In the late eighth century, Earth was hit by a mystery blast of cosmic rays, according to a Japanese study that found a relic of the powerful event in cedar trees.

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Source: http://www.cosmosmagazine.com/news/5648/in-tree-rings-japanese-scientists-find-8th-century-mystery

Gwen Stefani Halle Berry Hayden Panettiere Haylie Duff Heidi Klum Heidi Montag Hilarie Burton Hilary Duff

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