For the first time since 2005, NOAA says an "unusual event" has led to a severe G4 geomagnetic storm watch for Friday.

Elsewhere, huge hail up to 5 inches in diameter was reported west of Austin, Texas – greater than the size of a softball – ...

Hailstones the size of baseballs landed in Texas on Thursday, as a spate of storms and severe weather left more than 200,000 ...

Diameter Capital Partners is handing back some money to clients to stay flexible amid uncertainty in a high interest-rate environment, even as the investment firm raised $1.6 billion for its debut ...

A strong solar storm headed toward Earth could produce northern lights in the U.S. and potentially disrupt communications ...

A very rare severe geomagnetic storm watch has been issued by NOAA's Space Weather Prediction Center after a series of solar ...

The northern lights could be visible over much of the United States because of this unusually strong solar storm.

A research team led by the Hong Kong University of Science and Technology (HKUST) has discovered how ...

Thursday night, reports from around Austin and the Texas Hill Country showed massive hail falling from the skies, measuring ...

A supercell thunderstorm rolled through the Hill Country on Thursday, dropping gigantic hail across the region.

The new sunspot is 16 times the diameter of the Earth. Another sun spot also let loose strong CMEs this week and continues to ...