Sun Solar Flare 2025. The warning was triggered by a coronal mass ejection (cme), charged particles from the sun reaching earth's atmosphere overnight on monday. At its quietest, the sun is at solar minimum;

The new data are a stark reminder that even the most extreme solar events are part of the sun’s natural repertoire, said coauthor dr. Nasa’s solar dynamics observatory, which watches the sun constantly, captured images of the events.