Auroral radio signal offers new insight into intense magnetic storms

Southampton, UK (SPX) Dec 03, 2025

A University of Southampton team has identified a distinct low frequency radio signature that appears when small-scale auroral structures known as auroral beads emerge, providing a new clue to how intense auroral substorms are triggered.

Magnetospheric substorms are bursts of activity in Earth’s aurora that can rapidly transform faint arcs into bright, dynamic displays stretching across th