A sunspot, potentially generating multiple solar flares, may lead to auroras that could be visible as far south as Alabama.

The geomagnetic storm watch has been upgraded for Wednesday, Nov. 12 as a severe geomagnetic storm is now expected. A severe (G4) geomagnetic storm watch has been issued for Wednesday, Nov. 12 as the ...

Solar flares and other activity can disrupt radio communications, power grids and navigation signals, according to NASA.

Have you ever seen a coronal mass ejection? It’s the eruption of plasma during a solar flare, and new video captured one powerful eruption in stunning detail. A solar flare is usually the genesis of a ...

A flurry of activity solar activity this week produced a severe solar storm, sparking northern lights as far south as Florida on Tuesday night- just days after the sun unleashed its strongest solar ...