The last in a series of three coronal mass ejections hit Earth on Wednesday, so experts are keeping an eye on geomagnetic ...

NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare and X1 flare. See time ...

As this month's string of powerful X-class solar flares sparked brilliant auroras that lit up skies across an unusually wide ...

Over the past few days, an active sunspot has erupted multiple times, sending clouds of high-energy plasma into space. The ...

The sun unleashed the strongest X5.1 class solar flare, blasting the Earth with 2025 year’s strongest solar activity so far ...

The northern lights could be visible from a much larger portion of the northern United States than usual on Tuesday night and Wednesday morning, according to the National Oceanic and Atmospheric ...

A erupted with M1 and M6 class solar flares. Watch the fireworks in these views from NASA's Solar Dynamics Observatory.

Increased solar activity causes auroras that dance around Earth’s poles, known as the northern lights, or aurora borealis, ...

An accompanying CME is forecast to reach Earth on Wednesday night, triggering a severe G4 geomagnetic storm (G5 is the ...

The United States weather agency has issued a G4 geomagnetic storm watch alert, implying severe storms expected.

Two new large solar flares over the last 36 hours have increased the chances of northern lights this week, here's the latest projections.