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

As this month's string of powerful X-class solar flares sparked brilliant auroras that lit up skies across an unusually wide ...

NEW YORK (AP) — Solar storms brought colorful auroras to unexpected places on Tuesday night, and there could be more to come. Space weather forecasters confirmed that storms reached severe levels, ...

Increased solar flare activity could cause geomagnetic storms, NOAA says, which could affect certain technologies and migrating animals.

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 ...

CAPE CANAVERAL, Fla. (AP) — Intense solar storms responsible for breathtaking auroras across the U.S. delayed the launch of Blue Origin’s big new rocket Wednesday. Already grounded by poor weather, ...

Solar storms brought colorful auroras to unexpected places in the U.S. on Tuesday night, and there could be more to come. Space weather forecasters confirmed that storms reached severe levels on ...