Massive Solar Eruption Threatens to Cripple HF Radio Communications
Scientists classified the explosive event as an X4.2 flare, NOAA confirmed. X-class designations represent the most ferocious category of solar outbursts, with numerical values specifying exact intensity levels.
NOAA observers indicated that flares reaching this magnitude during and surrounding the solar maximum phase are typically not common, though not necessarily anomalous. These intense solar eruptions can manifest as impulsive events spanning several minutes or extend across multiple hours.
The space weather phenomenon could trigger immediate and extensive degradation or complete loss of HF radio signals throughout much of Earth's daylight hemisphere, NOAA cautioned. HF radio operators in impacted zones may encounter disruptions ranging from brief interruptions to outages lasting several hours.
Solar flares—violent energy discharges originating from the Sun—and associated eruptions can additionally compromise electric power infrastructure and navigation systems, while presenting hazards to orbiting spacecraft and astronauts, according to authorities.
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