Sun Unleashes Surprise X-class Solar Flare Triggering Radio Blackout Over Southern Africa.
The sun appears to have woken from its slumber with an impulsive X-class solar flare, the most powerful class of solar flare. The dramatic eruption originated from sunspot region 3912, reaching its peak at 4:06 a.m. EST (0906 GMT) on Dec. 8, and was accompanied by a coronal mass ejection (CME) — a large plume […]