Sunspot AR4366 has been very active with several flares recorded, the biggest of them being an X8.3-class solar flare. NOAA's ...

The sun has just fired off an eruption so intense it ranks among the most powerful solar flares seen in three decades, a jolt of energy that has put space weather forecasters and power grid operators ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. CAPE CANAVERAL, Fla. (AP) — A NASA telescope ...