The region was not considered a major concern by space weather specialists, and yet it produced a large M4-class solar flare at about 2239 UTC on December 28, according to SpaceWeather.com. The blast ...

A new solar storm is approaching. In 2025 there were several, but they did not have serious consequences. Now, the US ...

A G2 storm, rated "moderate" on the five‑tier NOAA scale, can induce voltage irregu­larities in power systems and affect high ...

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 ...

OVRO-LWA radio data contrasts a quiet day (Sept. 29, 2025) with the hours after the X1.7-class flare recorded at 2:35 ET on Nov. 9. The type III radio bursts, shown in the radio dynamic spectrum ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A spot on the sun 10 times larger than Earth has been seen ...

The X5.1-class eruption from sunspot AR4274 is this year's most powerful solar flare and Earth is in the firing line. When you purchase through links on our site, we may earn an affiliate commission.

Geomagnetic storm conditions are possible Nov. 10 through Nov. 12. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Editor's note: The sun ...

Scientists have captured an exceptionally rare, high-resolution view of an active region that produced two powerful X-class solar flares—an achievement rarely possible from Earth. Using the GREGOR ...