In mid-September 2025, a “secret” magnetic island inside a solar coronal hole triggered a powerful G3 storm. The surprise event sent dazzling auroras across North America, seen as far south as Illinois. Researchers say the rare polarity patch intensified solar winds, making aurora season’s start spectacular.
In mid-September 2025, a “secret” magnetic island inside a solar coronal hole triggered a powerful G3 storm. The surprise event sent dazzling auroras across North America, seen as far south as Illinois. Researchers say the rare polarity patch intensified solar winds, making aurora season’s start spectacular.
