Ancient Tree Rings Uncover Devastating Solar Storm

Scientists have identified evidence of the largest-ever solar storm that hit Earth 14,300 years ago, which could have had catastrophic effects on our modern technological society if it were to occur today. The storm was identified through the study of ancient tree rings, which showed an unprecedented spike in radiocarbon levels. By comparing this spike to measurements of beryllium in Greenland ice cores, the researchers concluded that the spike was caused by a colossal solar storm that bombarded Earth's atmosphere with energetic particles. Understanding the risks of such storms is crucial for building resilience in our communication and energy systems. While these extreme solar storms are rare, occurring only nine times in the last 15,000 years, their exact nature and causes remain poorly understood.