Science ❯ Astronomy ❯ Solar Activity ❯ Coronal Mass Ejections

Northern Lights

Severe Solar Storm Triggers Widespread Auroras as NOAA Confirms G4 Conditions

Forecasters expect conditions to ease after the Jan. 19–20 peak.

Severe Solar Storm Ignites Auroras as Forecasters Track Third, Stronger CME

Strong Geomagnetic Storm Triggers Widespread Aurora With More Possible Tonight