Imagine the Sun releasing a burst of energy so powerful it could knock out power grids, stop airplanes mid flight, and push ...

Talk about a heated situation. The sun unleashed two colossal solar flares within seven hours of each other this week, ...

The northern lights may be visible from Ireland over the next couple of days as a powerful solar storm hits our planet. On ...

Scientists outline how a once-in-a-century solar storm could disrupt the technology modern society depends on.

Every century or so, a solar event is strong enough to knock out satellites and even terrestrial power grids. Are we ready?

A worst-case solar storm could disrupt satellites, GPS, and power grids, causing significant damage to modern infrastructure, ...

Add Yahoo as a preferred source to see more of our stories on Google. The solar storm increased the number of electrons in two layers of the Martian atmosphere: A 45% increase at an altitude of 68 ...

Another space weather feature, coronal mass ejections (shown above) send plasma and magnetic field material from the sun's corona into space and can trigger geomagnetic storms when they hit Earth.

A powerful solar storm put on an amazing skyward light show across the globe overnight but has caused what appeared to be only minor disruptions to the electric power grid, communications and ...

A moderate geomagnetic storm could bring northern lights displays to U.S. states further south than usual, forecasts show. The National Oceanic and Atmospheric Administration Space Weather Prediction ...

The Sun has erupted with an X-class solar flare, the most powerful kind, blacking out shortwave radio communications across the sunlit side of Earth. Here is what happened, why your radio went silent, ...

Japanese scientists have found traces of a powerful solar-proton event in tree rings that occurred around 1200-1201.