New Sunspot 4366 Now A Behemoth

SPACEWEATHER.COM NEWS: 02/02/2026

X8-CLASS SOLAR FLARE: Giant sunspot 4366 is a solar flare factory. In the past 24 hours, it has produced 17 M-class solar flares and 3 X-class flares. The most intense so far was yesterday’s X8-class flare, shown here in a movie from NASA’s Solar Dynamics Observatory.