For the first time in nearly 20 years, the National Oceanic and Atmospheric Administration has forecasted a "severe" G4 geomagnetic storm to hit this Friday, dazzling states across the northern US ...

and Feb. 1. Keep up with current northern lights forecasts and geomagnetic storm warnings with our aurora forecast live blog. A massive 500,000-mile-wide (800,000-kilometer) coronal hole in the ...

Aurora chasers are on high alert for minor geomagnetic storm conditions from Jan. 24 through to Jan. 25. Northern lights might be visible over some northern and upper Midwest states.

The company said as many as 40 of the 49 satellites launched last week were affected by a geomagnetic storm on Feb. 4, causing them to fall out of orbit. Photo: Eddie Irizarry/Sociedad de ...

These phenomena can have significant effects on Earth's magnetosphere, leading to geomagnetic storms that can disrupt communication systems, navigation, and even power grids. Recent research has ...

The Kp index measures geomagnetic activity, with higher numbers indicating more intense aurora-producing solar storms. “If you look back at decades of data, you will find that in the typical ...

Solar storms are rated by NOAA’s Space Weather Prediction Center (SWPC) on a five-level scale, with five being the most extreme and rarest space weather conditions. Level 4 out of 5, or "severe," ...