NOAA issues a 'Severe' solar storm alert, auroras expected across most of the U.S. - Earth.com
June 2, 2025, 5:11 p.m.
At 9:46 AM Eastern Daylight Time on June 1, 2025, instruments registered a geomagnetic K-index of 8, creeping toward 9 – a level rarely reached outside the most intense solar episodes.
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