Sunspot AR4566 Doubles in Size While Facing Earth as NOAA Keeps M-Class Flare Odds at 60%

Nature World News | 09.11.2026 18:25
A rapidly growing sunspot group called AR4566 now sits almost dead center on the Earth-facing side of the Sun, and forecasters say it has the magnetic complexity to produce strong flares. NOAA's Space Weather Prediction Center (SWPC), in a joint report issued at 2200 UTC Sunday, Nov. 8 (5 p.m. EST), gave a 60% daily chance of M-class flares and a 15% daily chance of X-class flares for Nov. 9 through Nov. 11.