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Scientists Find Evidence of Past Extreme Solar Storms, Warn of Potential Technological Catastrophe

Scientists Find Evidence of Past Extreme Solar Storms, Warn of Potential Technological Catastrophe

Recent studies reveal that past extreme solar storms could have wreaked havoc on modern technology if they occurred today.

Written by Gadgets 360 Staff | Updated: 25 September 2024 22:02 IST

Scientists Find Evidence of Past Extreme Solar Storms, Warn of Potential Technological Catastrophe

Photo Credit: Pixabay/ WikiImages

Solar storms happen when the Sun ejects charged particles into Earth's magnetic field.

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Highlights

Scientists discover evidence of extreme solar storms in tree rings
Past storms far stronger than the 1859 Carrington event
Future solar storms could disrupt global power and communication networks

In 1859, when Charles Darwin published On the Origin of Species, the Earth experienced one of the most powerful solar storms in recorded history. Telegraph systems across Europe and North America malfunctioned, sparking fires in some places. This event, later known as the Carrington event, was preceded by the first confirmed observation of a solar flare, an intense burst of radiation from the Sun. The flare set off brilliant auroras across the skies, signalling the onset of the solar storm. While the Carrington event was intense, new research shows that even more extreme solar storms have occurred in the past.

Radiocarbon Clues from Tree Rings

Scientists have uncovered evidence of these ancient storms by studying radiocarbon levels in tree rings. Fusa Miyake, a researcher from Nagoya University, led a team that discovered abrupt spikes in radiocarbon concentrations, indicating extreme solar storms. Their findings include events such as those in AD774, AD993, and even further back in 660BC and 5259BC. These solar storms were much stronger than the Carrington event, with the most intense storm on record occurring around 14,370 years ago, near the end of the last ice age.

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Impact on Modern Technology

Solar storms occur when the Sun ejects charged particles that penetrate Earth's magnetic field. These storms can disrupt our technological infrastructure, including satellites, power grids, and communication networks. The events identified in tree rings suggest that our modern world would be vulnerable to such an event. With solar storms capable of shutting down global systems, scientists are working to understand their frequency and intensity by studying ancient trees worldwide. This research not only improves radiocarbon dating but also helps us prepare for future solar storms, which could have devastating effects on today's interconnected society.

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