Usually, a solar storm means that auroras will light up the sky. But more powerful storms, such as this ancient one, could ...

Space weather experts warn that a moderate-strength geomagnetic storm could hit Earth Friday or Saturday (Aug. 8 or 9) — ...

The M4.4 solar flare unleashed a coronal mass ejection (CME) into space — and Earth might just receive a glancing blow.

Solar storms that fling magnetism across the solar system can knock out satellites, power grids, communication and navigation ...

A frontal boundary slowly pushing through the northern tier of the country will be the focus of severe thunderstorms over the ...

The ‘severe’ solar storm could trigger Northern Lights as far south as Alabama Friday night. Courtesy of NASA/SDO This is the first severe watch in 19 years. Courtesy of NASA/SDO ...

An active sunspot could give photographers another reason to photograph the night skies this weekend. A solar flare that hit ...

A coronal mass ejection hurtling from the sun toward Earth could unleash the northern lights in up to 18 states in the US.

Our sun is about five times less magnetically active than other sunlike stars—effectively a special case. The reason for this ...

Another solar storm is blasting the Earth. Here's what's going on with today's storm and what you need to know about the potential for future storms.