A strong solar storm is expected to hit Earth around September 1-2, potentially causing a G3 (strong) geomagnetic storm. This could lead to stunning aurora displays visible much farther south than usual, potentially reaching states like Illinois. The storm is caused by a coronal mass ejection (CME), possibly a 'cannibal CME' where one CME overtakes another. The best viewing time is likely Monday night into Tuesday morning (Sept. 1-2) in the Northern US, requiring dark skies and a clear view to the north. Eighteen US states have a chance to witness this celestial event.

Prepared by Olivia Bennett and reviewed by editorial team.