The solar superstorm emanated from an active sunspot region called AR3664. Clusters of sunspots like this one are notorious ...

As if returning to the Moon’s vicinity hadn’t already had enough things to delay it, now risky space weather could get in the ...

Solar physicists have long known that the sun stores staggering amounts of magnetic energy, but the exact trigger that lets that energy explode in a solar flare has been stubbornly elusive. Now, a new ...

Scientists develop a forecasting system that predicts high-risk windows and regions for solar superflares, using 50 years of X-ray data and machine learning techniques.

Sunspot AR3184 erupted with an X1.9-class solar flare. NASA's Solar Dynamics Observatory (SDO) captured the fireworks. The ...

Add Yahoo as a preferred source to see more of our stories on Google. Over the past 24 hours, the sun has been especially active, unleashing a rapid-fire series of powerful solar flares, including an ...

Add Yahoo as a preferred source to see more of our stories on Google. The Sun released a strong solar flare on Tuesday, Feb. 3, following several eruptions in the preceding days, raising the ...

Update Monday 8 p.m.: The coronal mass ejection (CME) arrived earlier and stronger than expected, around sunset. The planetary index (abbreviated Kp for it's German equivalent) initial topped 8 and is ...

A sunspot so big it rivals the gigantic sunspot responsible for the Carrington Event in 1859 has unleashed another X-class solar flare, triggering radio blackouts on Earth. When you purchase through ...