A fast CME slammed into Earth on Jan. 19, unleashing hours of intense auroral activity and lighting up skies far beyond the poles.

Severe G4 geomagnetic storm sparks jaw-dropping northern lights worldwide (photos)

Source: space
Source Link: https://www.space.com/stargazing/auroras/severe-g4-geomagnetic-storm-sparks-jaw-dropping-northern-lights-worldwide-photos