facebook
twitter
rss
account
search
search

2012 solar 'superstorm' linked to collision of huge sun eruptions

These solar "superstorms" could shut down power grids on Earth and interfere with satellites, if directly aimed at our planet.
By Aileen Graef   |   March 19, 2014 at 11:51 AM   |   Comments

March 19 (UPI) -- Physicists in Beijing have determined that the 2012 solar storm was due to the interaction of three huge ejections of particles and magnetic field from the sun.

One coronal mass ejection erupted on the then far side of the sun on July 19, 2012. Then two more erupted four days later, and only 15 minutes apart. The resulting collision resulted in the largest geomagnetic storm in the space era. If the storm had been aimed directly at Earth, power grids would most likely been short-circuited and satellites disrupted.

By the time CMEs hit Earth, they normally have the same amount of charged particles Earth receives from the sun daily. According to Ying Liu, a physicist at the National Space Science Center in Beijing, the collisions of the CMEs result in particle streams with five times the speed and 10 times the magnetic field strength of a normal CME.

The discovery could help improve space weather forecasting, and help prepare Earth for better response when extreme space weather occurs.


[Huffington Post]

Follow @AileenGraef and @UPI on Twitter.
Contact the Author
© 2014 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Most Popular
1
Dinosaurs shrank for 50 million years before becoming birds
2
Cape Cod scientists tag first great white shark of season
3
Five-minute video visualizes history of human culture
4
Music helps cows relax, produce more milk
5
Thousands of velellas wash up on the shores of San Francisco
Trending News
Video
x
Feedback