Tag Archive | SPACEWEATHER.COM NEWS: 10/14/2025

SPACEWEATHER: Incoming CMEs, and One of the Largest Sunspots of Solar Cycle 25

Peak Solar Activity

SPACEWEATHER.COM NEWS: 10/14/2025

A POTENTIALLY DANGEROUS SUNSPOT: It’s big, and a little weird. Sunspot 4246 has grown rapidly into one of the largest sunspots of Solar Cycle 25. Moreover, it has an unusual mixed-polarity magnetic field, shown in this Oct. 14th magnetic map from NASA’s Solar Dynamics Observatory:

Continue reading