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 ...

A moderate solar flare might affect radio communications on Earth, the National Oceanic and Atmospheric Administration said ...

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 ...

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 ...

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 ...

A black hole ate its way into the record books after devouring a star and creating a celestial outburst that burned with the ...