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Earth was just hit by the strongest solar radiation storm in over 20 years — here's what it means
Earth just experienced a rare S4 solar radiation storm, the most intense since 2003 — powerful for satellites and astronauts, ...
"This is the largest solar radiation storm in over 20 years," the Space Weather Prediction Center said on Monday.
A powerful flare unleashed a severe solar storm that caused auroras and GPS disruptions on Earth.
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