Activity on the sun is not constant; it varies along a cycle of about 11 years. The peak of this solar cycle — called solar maximum — is when sunspots, solar flares and coronal mass ejections (CMEs) ...

A new study led by Southwest Research Institute (SwRI) links quasi-periodic pulsations (QPPs) in solar flares to dynamic ...

A massive solar flare unleashed November 11 was one of the strongest on record, experts say—and the Earth-based fallout from weather on our closest star isn’t done yet. The flare—a powerful burst of ...

A powerful M8.1 solar flare sent a full-halo coronal mass ejection toward Earth, and scientists expect it to trigger strong G3 geomagnetic storm levels on Tuesday. Forecasts show the Kp index rising ...

This was the view as a multi-colored curtain of aurora formed to the south in my sky during the great display of Northern Lights on May 10, 2024. The Kp Index peaked at 8 this night bringing the ...

The clearest pictures ever taken of a solar flare have been taken by the world's largest solar telescope. Get any of our free email newsletters — news headlines, sports, arts & entertainment, state ...