A recent period of strong solar flares is expected to gradually decline over the coming weeks and months, according to scientists. The most powerful eruption of 2025 so far was observed last week by NASA’s Solar Dynamics Observatory and the U.S. National Oceanic and Atmospheric Administration (NOAA).
The X2.7 flare caused a brief “degraded communications” period for high-frequency radio systems in the Middle East. The Space Weather Prediction Center says scientists are at solar maximum, which can lead to periods of increased activity.
Solar flares are powerful bursts of energy within the sun’s atmosphere, classified on a letter scale based on their intensity. The X2.7 flare was weaker than an X9.0 observed last October, but still caused disruptions to radio communications.
The sun is currently at its peak solar cycle, with elevated activity expected this year and possibly into 2026. Solar flares can impact radio communications, electric power grids, navigation signals, and pose risks to spacecraft and astronauts.
While high-frequency radio communications are the most affected, other networks like internet and cellular services remain unaffected. Scientists predict a gradual decline in solar flare activity as the sun’s cycle begins to fade.
Source: https://globalnews.ca/news/11187863/sun-solar-flares-blackouts-explainer-nasa