Powerful X-class flares on Feb. 3 (X1.5–X4.2) spark radio blackouts and satellite-communications warnings
On Feb. 3 the Sun unleashed multiple X-class flares—an X1.5 that peaked at 9:08 a.m. ET and an impulsive X4.2—that produced strong geomagnetic activity and knocked out HF radio across Africa and Europe. NASA captured the eruptions and ISRO warned of heightened risk to satellite and radio communications.
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