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.

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 ...

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

Three strong solar flares occurred during the first 10 hours of Thursday, July 2. This is evidenced by data from a graph ...

On top of fireworks for America 250 celebrations in the U.S., the sky may have its own fireworks show, with the northern lights making an appearance. On Tuesday, the sun woke up with an X1.1 flare ...

NOAA forecasts a G2 geomagnetic storm for July 2-3 as a CME arrives, with aurora most likely on the northern horizon in U.S.

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

Solar flares, powerful bursts of energy from our Sun, can have serious effects here on Earth. Flares and other solar eruptions can affect radio communications, disrupt electric power grids, mess up ...

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

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