Researchers have discovered an "unexpected" accumulation of the radioactive isotope beryllium-10, deep underneath the surface of the Pacific Ocean. As detailed in a paper published in the journal Nature Communications, the international team of scientists believes that the "anomaly" dates back to shifts in ocean currents or cosmic rays interacting with the Earth's atmosphere approximately ten million years ago. Beryllium-10 is known to be continuously produced by cosmic particles interacting with high-energy protons, which are known to race through the universe at almost the speed of light. Radioactive isotopes are typically used by researchers to date archaeological and geological samples. […]

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https://futurism.com/huge-radioactive-anomaly-pacific-ocean