A solar radiation storm marks the release of intense, rapidly-moving charged particles toward Earth and can impact space launches, aviation and satellite operations. The last time severe solar ...

The sun has become increasingly active since 2008, a new NASA study shows. Solar activity is known to fluctuate in cycles of 11 years, but there are longer-term variations that can last decades. Case ...

The sun has become more and more active over the last 16 years, in a turn that surprised scientists and could affect space weather and technology on Earth, NASA announced this week. A new research, ...

After a calm week, the sun erupted again. A powerful M5.1 solar flare burst from an emerging sunspot region, shaking the stillness of space weather and igniting new forecasts of heightened activity.