SOLAR FLARE AND RADIO BLACKOUT: In a sign of increasing solar activity, the sun just produced an M-class solar flare--one of the strongest flares of new Solar Cycle 25. A pulse of X-rays and UV radiation caused a shortwave radio blackout over the Pacific Ocean, and the explosion also hurled a CME into space. Get the full story @ Spaceweather.com.
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Above: This map from NOAA shows areas and frequencies affected by today's minor radio blackout.
