Ancient cedar trees hold 8th-century mystery

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

Drew Barrymore Ehrinn Cummings Elena Lyons Elisabeth Röhm Elisha Cuthbert Eliza Dushku Emilie de Ravin Emma Heming