Solar Storms Are Back, Threatening Power Grids and Satellites – BloombergQuint

(Bloomberg) — A few days ago, millions of tons of super-heated gas shot off from the surface of the sun and hurtled 90 million miles toward Earth.
The eruption, called a coronal mass ejection, wasnt particularly powerful on the space-weather scale, but when it hit the Earths magnetic field it triggered the strongest geomagnetic storm seen for years. There wasnt much disruption this time — few people probably even knew it happened — but it served as a reminder the sun has woken from a years-long…

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