Solar Storm Outstripped Carrington Tenfold

About 14,300 years ago, Earth endured a solar storm that researchers estimated was roughly 10 times more powerful than the Carrington Event of 1859. Scientists detected its chemical signature through a sharp carbon-14 spike in ancient tree rings recovered near the Drouzet River in the southern French Alps. They confirmed the timing with beryllium records from Greenland ice cores, identifying the largest known solar storm of its kind.

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