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Mysterious radiation burst recorded in tree rings (supernovae and solar flares ruled out)

Just over 1,200 years ago, the planet was hit by an extremely intense burst of high-energy radiation of unknown cause, scientists studying tree-ring data have found.

The radiation burst, which seems to have hit between ad 774 and ad 775, was detected by looking at the amounts of the radioactive isotope carbon-14 in tree rings that formed during the ad 775 growing season in the Northern Hemisphere.

Very interesting. I’ll have to contemplate that.

(Source: nature.com, via bethyhealer)

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  1. evolving-eleutheria reblogged this from bethyhealer and added:
    Just over 1,200 years ago, the planet was hit by an extremely intense burst of high-energy radiation of unknown cause,...
  2. tedbongdy reblogged this from bethyhealer
  3. daiarashi reblogged this from bethyhealer and added:
    Very interesting. I’ll have to contemplate that.
  4. experimentaltimeorder reblogged this from bethyhealer
  5. bethyhealer posted this