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A Monster Solar Storm Struck Earth 14,300 Years Ago

Because of our dependence on technology, a powerful solar storm would be a catastrophe, shutting down the electrical grid and deactivating satellites. Researchers studying tree rings have found what they think is the most powerful solar storm ever to hit our planet - 14,300 years ago. So far, scientists have found nine extreme solar storms, called Miyake Events, in the last 15,000 years, but this newly identified one is twice as powerful as anything found.

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