Massive sunspot and X-class solar flare may cause auroras

A massive sunspot, ten times Earth's size, has appeared on the sun, coinciding with an X1.9 solar flare. The flare, detected on December 1, 2025, caused a radio blackout in Australia. While flares themselves don't cause auroras, subsequent coronal mass ejections can. Increased solar activity is expected in the coming weeks, potentially leading to auroras if Earth-directed coronal mass ejections occur.