The four X-class solar flares in about a day is a rate that makes even a typical sunspot pass a near-Earth space stress test ...

After an X-class solar flare erupted on Feb. 1, a coronal mass ejection reached Earth sooner than expected, prompting ...

The Sun is putting on quite a show right now. Earth-facing sunspot region 4366 has been erupting almost non-stop since it emerged on January 30, producing six X-class solar flares so far.

The X4.2-rated flare erupted at 7:13 a.m. EST on February 4.

Aurora alert! The colossal solar storm could impact and trigger impressive northern lights. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The ...

Three solar flares are barreling toward Earth and they could create a northern lights show to be remembered Tuesday night. These coronal mass ejections, or CMEs, blew off the surface of the sun Nov. 9 ...

A powerful X1.9 solar flare erupted on January 18, launching a fast coronal mass ejection toward Earth. Forecasters warn of ...

A rapidly growing sunspot has fired off at least 18 M-class and three X-class flares in just 24 hours, including an intense X8.3 eruption.

Multiple M-class and X-class solar flares erupted within 24 hours as an active sunspot released intense radiation affecting ...

The X8.1 flare was accompanied by a coronal mass ejection (CME), a significant release of plasma and magnetic field from the sun's corona. Modeling suggests that the bulk of the material from this CME ...

After a day that saw the sun release strong solar flares, the Space Weather Prediction Center has issued a strong geomagnetic storm watch for the planet. Over the last 24 hours the sun has released ...