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

The sun has just fired off an eruption so intense it ranks among the most powerful solar flares seen in three decades, a jolt of energy that has put space weather forecasters and power grid operators ...

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

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

A powerful flare unleashed a severe solar storm that caused auroras and GPS disruptions on Earth.

The planet is experiencing the most powerful solar event since 2003—and it's bringing spectacular Northern Lights.

Earth's magnetic field was struck by a "severe" solar storm Monday (Jan. 19), triggering vibrant auroras in the U.S. and ...

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

Largest solar radiation storm in more than 20 years could trigger auroras on Earth - A solar radiation storm this large has ...

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 ...

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.

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