As a particularily active sunspot region rotates into view, the sun has released its largest solar flare since June.

The northern lights will be possible again tonight with the chances of a strong geomagnetic storm impacting the planet. This ...

A strong geomagnetic storm watch has been issued for Thursday night into Friday morning after a number of strong solar flares ...

The northern lights will be possible again tonight with the chances of a strong geomagnetic storm impacting the planet. This ...

The sun has emitted a powerful solar flare that has the capability to interfere with technology on Earth. The explosive burst of radiation peaked on the evening of June 17, matching the intensity of ...

The world's largest solar telescope just captured the highest-resolution images of a solar flare to date — and they're spectacular. Researchers trained the Hawaii-based Daniel K. Inouye Solar ...

The clearest pictures ever taken of a solar flare have been taken by the world's largest solar telescope. Get any of our free email newsletters — news headlines, sports, arts & entertainment, state ...

A new giant sunspot, active region 4246, is now visible from Earth. Scientists believe another, even larger region is emerging. This solar activity could cause minor geomagnetic storms and disrupt ...