Severe G4 geomagnetic storm sparks jaw-dropping northern lights worldwide (photos) A fast CME slammed into Earth on Jan. 19, unleashing hours of intense auroral activity and lighting up skies far beyond the poles. Astrobitica January 20, 2026 (Last updated: January 20, 2026) 1 minute read A fast CME slammed into Earth on Jan. 19, unleashing hours of intense auroral activity and lighting up skies far beyond the poles. About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: Geomagnetic storm to bring northern lights to central USNext: Comet Wierzchos buzzes the sun later today: But can you see it?