Solar System Peak Activity in October

SPACEWEATHER.COM NEWS: 10/16/2025

MULTIPLE CMEs COULD SPARK AURORAS TONIGHT: All week long, active sunspot 4246 has been puffing CMEs toward Earth–at least three of them. Although the CMEs are individually faint and relatively slow, they could combine to cause a G2-class geomagnetic storm when they arrive on Oct. 16th. If such a storm materializes, auroras could descend into a dozen or more northern-tier US states.

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