# solar flare
Latest news and articles about solar flare
Total: 2 articles found
NOAA Issues Alert After X‑Class Solar Flare; Minor Geomagnetic Storms Expected
NOAA warned that an X4.2 solar flare on Feb. 4 produced a G1 (minor) geomagnetic storm on Feb. 5, with further G1 activity possible on Feb. 6 and 8. Impacts are expected to be modest — chiefly HF radio interference, potential satellite anomalies and high‑latitude auroras — but the episode underscores growing space‑weather risks as active solar regions face Earth.
Small Sparks, Massive Storms: ESA Identifies 'Magnetic Avalanche' as Trigger for Solar Flares
The European Space Agency reports that solar flares can be triggered by a cascade of tiny, rapid magnetic disturbances that amplify into a "magnetic avalanche." This emergent mechanism reframes flare onset as a scale-crossing process and could improve space-weather forecasting if validated and incorporated into monitoring systems.