The X1.1 eruption briefly disrupted radio communications across the daylight side of Earth.

Multiple CMEs are heading toward Earth, with G1-G2 geomagnetic storm conditions possible as the holiday weekend begins.

Scientists are currently trying to determine if a coronal mass ejection (CME) was also launched.

NOAA forecasts a G1, G2 or G3 geomagnetic storm on July 1-3 as a CME arrives, with aurora most likely on the northern horizon ...

Forecasters expect a coronal mass ejection and a powerful X-class solar flare could impact the Earth starting on Thursday. NOAA is predicting a Kp index of five out of nine on Thursday, meaning the ...

A coronal mass ejection could trigger a moderate geomagnetic storm this weekend, potentially pushing aurora visibility as far ...

A strong solar flare erupted from a sunspot facing Earth on June 30, causing radio blackouts across parts of North America.

A powerful solar flare from sunspot 4479 caused a radio blackout over North America and the Pacific, while an approaching ...

Solar flares largely go unnoticed, but that doesn't mean there aren't dangerous ones that could impact life on Earth.

Scientists spotted patterns hours before a major solar flare, a discovery that could help forecast dangerous eruptions.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A sunspot on the surface of the sun has erupted with a powerful solar ...