Did an eighth-century gamma-ray burst irradiate Earth?

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    Anonymous

    Did an eighth-century gamma-ray burst irradiate Earth?
    The detection of high levels of the isotope carbon-14 and beryllium-10 in tree rings formed in A.D. 775 suggest that a burst of radiation struck Earth in the year 774 or 775.
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    By Royal Astronomical Society, United Kingdom ? Published: January 21, 2013 For more info click here

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