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January 21 2013

Two Merging Black Holes May Have Irradiated Earth Around AD 775


According to a new study conducted by German astronomers Dr Valeri Hambaryan and Dr Ralph Neuhauser, an intense blast of high-energy radiation that struck our planet in the 8th century may have been caused by a nearby short gamma-ray burst, emitted by two merging stellar remnants black holes, neutron stars or white dwarfs.

In 2012, cosmic-ray physicist Prof Fusa Miyake from Nagoya University in Japan announced the detection of high levels of the isotope carbon-14 and beryllium-10 in tree rings formed in 775 CE, suggesting that a burst of radiation struck the Earth in the year 774 or 775.

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