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2,700-year-old giant solar storm detected in Greenland ice

2,700-year-old giant solar storm detected in Greenland ice

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Evidence of an unusually strong solar storm that hit Earth in 660 BCE has been detected in Greenland ice cores-a finding which shows we still have lots to learn about these disruptive events. An extreme form of solar storm, known as a solar proton event (SPE), struck our planet 2,679 years ago, according to new research published today in Proceedings of the National Academy of Sciences. If an event of such magnitude were to happen today, it would likely wreak havoc on our technological infrastructure, including communications and navigation. Lund University geologist Raimund Muscheler and his colleagues presented evidence in the form of elevated levels of beryllium-10 and chlorine-36 isotopes embedded within ancient Greenland ice cores. It’s now the third massive SPE known to scientists, the others occurring 1,245 and 1,025 years ago. This latest discovery means solar storms of this variety are likely happening more frequently than we thought-perhaps once every 1,000 years-but more…
Source: 2,700-year-old giant solar storm detected in Greenland ice

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