A geomagnetic storm that began Monday evening across the Northern Hemisphere has raised the possibility of a rare sight in the skies over Chicago, with the northern lights potentially visible overnight. The storm was triggered by a Coronal Mass Ejection, or CME, that erupted from the sun over the weekend. This burst of solar particles reached Earth near 5 p.m. EDT on Monday, with the first signs detected at the L1 orbital point about one million miles away from Earth by monitoring satellites.
A geomagnetic storm that began Monday evening across the Northern Hemisphere has raised the possibility of a rare sight in the skies over Chicago, with the northern lights potentially visible overnight. The storm was triggered by a Coronal Mass Ejection, or CME, that erupted from the sun over the weekend. This burst of solar particles reached Earth near 5 p.m. EDT on Monday, with the first signs detected at the L1 orbital point about one million miles away from Earth by monitoring satellites.