These CMEs are currently headed toward Earth and will likely cause strong to minor geomagnetic storms later today and ...

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

Could three giant solar storms combine into one of the most powerful geomagnetic storms in decades? That’s exactly what space ...

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

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

NASA’s Solar Dynamics Observatory captured an X2.8-class solar flare and a pair of m-flares that preceded it in multiple wavelength. Reported to be the biggest flare since an X9.3 flare in Sept. 2017.

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

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

Northern lights dazzled much of the northern U.S. Tuesday after a solar flare. Forecasters say another colorful show could ...

Beautiful yet dangerous solar flares that erupt from the sun could be as hot as 180 million degrees Fahrenheit, researchers say. That's more than six times hotter than solar physicists previously ...

For the first time ever, astronomers have spotted a powerful coronal flare (cme) from a star other than the Sun.