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Earth hit by biggest 'solar radiation storm' in 23 years, triggering Northern Lights as far as Southern California

Earth's magnetic field was struck by a "severe" solar storm Monday (Jan. 19), triggering vibrant auroras in the U.S. and ...

Rare Solar Storm Is Striking Earth. Here’s What That Could Mean

"This is the largest solar radiation storm in over 20 years," the Space Weather Prediction Center said on Monday.