Scientists warn of MASSIVE solar storms: “We need to be better prepared”

Thursday, July 25, 2019
By Paul Martin

by: Edsel Cook
Wednesday, July 24, 2019

Swedish researchers found evidence that three solar storms engulfed the Earth during the past 3,000 years. The earlier instances of turbulent space weather dwarfed the ones recorded in history books.

If one of those ancient storms took place in modern times, it would devastate electrical and electronic systems. Experts warned that communications, computer-based technologies, power grids, and satellites are vulnerable to rough solar weather.

When the sun experiences severe activity, it releases vast amounts of excited particles. The resulting solar storm covers vast distances at rapid speeds.

Its particles may burn out the electronic circuits of satellites. It will also trigger electric surges that shut down large sections of terrestrial power grids.

Recent incidences of solar storms include the one that hit Quebec, Canada during 1989 and another event that affected Malmo, Sweden in 2003. But a much older storm from 660 B.C. made those look positively calm.

“If that solar storm had occurred today, it could have had severe effects on our hi-tech society,” explained Lund University researcher Raimund Muscheler.

Muscheler and his team came upon the evidence for the ancient solar storm while studying ancient ice cores excavated from Greenland. Analysis of other ice cores and growth rings of old trees showed that another two huge storms took place in 775 A.D. and 994 A.D.

Fortunately, solar storms of that size happen to be rare. But the Lund researchers believed that the very rough patches of space weather regularly took place.

“That’s why we must increase society’s protection against solar storms,” warned Muscheler. “Our research suggests that the risks are currently underestimated. We need to be better prepared.”

A solar storm has four means of affecting Earth
A solar storm involved four different events. Solar flares, coronal mass ejections (CMEs), solar wind streams, and solar energetic particles affect the Earth in different ways.

A solar flare is a big eruption that occurs in the atmosphere of the sun. It shoots a torrent of photons away from the star.

In comparison, a CME hurls large masses of plasma and magnetic fields into space. The stellar cloud may travel in any direction and moves fast enough to go through the solar wind.

When a hole appears in the corona of the sun, it releases streams of fast-moving particles that become a solar wind. While a coronal hole may form on any part of the sun, they only threaten the Earth if they spawn near the equator of the star.

Solar energetic particles comprise the last segment of a solar storm. Researchers believe that these come from the shock waves at the foremost part of a solar flare or a CME when the space weather event goes through the solar wind.

Human technology is at the mercy of solar activity

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