Scientists monitoring solar activity have issued warnings about a severe solar radiation storm heading towards our planet. But is Earth really experiencing the largest solar storm in two decades today? Verdict:TRUEEarth will be experiencing the largest solar radiation storm in over 20 years today, according to the National Weather Service's Space Weather Prediction Center. The severe solar radiation storm reached S4 level on the agency's severity scale, exceeding the intensity of the October 2003 "Halloween" space weather storms. The last time such severe conditions were observed was during the Halloween solar storms of October 2003.

Source: Washington Post January 20, 2026 01:50 UTC