Deadly “red sky” solar storm from 800 years ago discovered in ancient trees
Researchers in Japan traced a hidden medieval solar storm using ancient tree rings and centuries-old sky observations. The team linked reports of eerie red auroras with spikes of carbon-14 trapped in buried wood, revealing a powerful solar radiation event around 1200 CE. The findings suggest the Sun was far more active at the time, with unusually short solar cycles.
Scientists have uncovered evidence of a significant solar storm that occurred around the year 1200 CE, utilizing data from ancient Japanese trees and historical sky observations. By analyzing carbon-14 isotopes within buried wood, researchers identified a surge in solar radiation consistent with a powerful space weather event. This discovery correlates with medieval records describing unusual red auroras, suggesting the Sun experienced a period of heightened activity with shorter-than-usual solar cycles.
This finding indicates that extreme solar events can occur more frequently than previously understood, potentially posing a future risk to our modern technological infrastructure.
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