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was a major reality check for a rapidly industrializing humanity. In September 1859, the Sun unleashed an eruption so powerful it sent electrical currents sweeping across Earth's surface, wiping out telegraph systems around the world, with fires and mayhem.It took place, they say, some 14,300 years ago, well before there was a technology grid to disrupt. Such events, more powerful than Carrington, appear periodically in the fossil record. But this one is the most powerful ever seen.
Carbon-14 is incorporated into organisms, such as trees and animals, and because it decays at a known rate, scientists can use it to determine"Recently, scientists have found that extreme solar events including solar flares and coronal mass ejections can also create short-term bursts of energetic particles which are preserved as huge spikes in radiocarbon production occurring over the course of just a single year.
The researchers created slices of these trees, and found a ring with a huge spike in radiocarbon, dated to around 14,300 years ago.
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