Sun unleashes powerful X-flare, CME hits Earth sparking severe geomagnetic storm
A powerful X-class solar flare on Jan. 18 launched a fast-moving coronal mass ejection (CME) that struck Earth on Jan. 19, triggering severe G4 geomagnetic storm conditions earlier than expected. The shock wave arrived at 2:38 p.m. EST, and the storm remains ongoing, promising heightened aurora activity through the evening. The impact of a CME depends on its magnetic orientation: a southward-directed field (Bz) can … Continue reading Sun unleashes powerful X-flare, CME hits Earth sparking severe geomagnetic storm
