1,200-Year-Old Cosmic Blast Captured in Japanese Trees

A surplus of radioactive atoms in Japanese trees may point to an unrecorded astronomical event that showered Earth with cosmic rays about 1,200 years ago.

This entry was posted on Friday, June 8th, 2012 at 1:16 pm and is filed under Astrophysics. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

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