Northern lights occur when a solar flare interacts with Earth's atmosphere.

"This is the largest solar radiation storm in over 20 years," the Space Weather Prediction Center said on Monday.

This geomagnetic storm interfered with telegraph communications around the globe. Sparks reportedly leapt from telegraph ...

Earth just experienced a rare S4 solar radiation storm, the most intense since 2003 — powerful for satellites and astronauts, ...

A volatile region on the Sun has just fired off a monster solar flare, followed by a blast of charged particles that ...

A powerful flare has unleashed a severe solar storm that could cause auroras and satellite disruptions on Earth.

A solar radiation storm stronger than one we've seen in over two decades is in progress, the Space Weather Prediction Center announced Monday.

A powerful X-class solar flare has unleashed a severe geomagnetic storm, arriving faster and stronger than predicted. Join Weather Network's Kim MacDonald and meteorologist Scott Sutherland as they ...

Colorful auroras could dazzle skywatchers again on Monday night amid a severe geomagnetic storm and what the National Oceanic and Atmospheric Administration said was the largest solar radiation storm ...

The NOAA Space Weather Prediction Center has confirmed that severe G4 geomagnetic storm conditions have already been reached ...

Tree rings hold clues about ancient solar storms. New research shows tree growth and carbon storage can shift those signals across years.

After Storm Fern cut power to millions, GoodPower CEO Leah Qusba explains what really failed on the grid, and why wind and solar weren’t to blame.