A recently detected sunspot region unleashed a powerful X4.5 solar flare early Monday morning, causing radio blackouts throughout parts of the Eastern Hemisphere.

The sun unleashed a massive solar flare on Tuesday (Aug. 9), one powerful enough to earn X-class status, the highest ranking for solar flares. Solar flares, huge explosions in the sun's atmosphere ...

This X-class solar flare will likely trigger coronal mass ejections, which hurl magnetic fields and charged particles into the solar system at up to 1,900 miles (3,000 kilometers) per second.

Astronomy Solar System The Sun The sun just erupted with a major X-class solar flare. Here's what it looked like on video.

A study published in April describes the most accurate measurement yet made of the center of the Solar System.

They intend to continue training the model to visually predict solar flares for the first time, with the aim being to provide a two-hour warning before such events take place.

Coronal loops are giant arches of superheated plasma guided by the Sun’s magnetic field. These loops can precede solar flares ...

A powerful X2.7-class solar flare may disrupt GPS and radio signals tonight, while also making the Northern Lights visible across the UK and Ireland.

Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside forces since their birth billions of years ago. The find ...

When most of us left school there were still 9 planets – but we’ve come a long way since Pluto’s demotion. Here’s what’s next on the space agenda.