A moderate geomagnetic storm can cause minor issues for satellites, GPS signals and high-frequency radio communication. Some power grid systems in higher-latitude countries may also see small ...

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

This geomagnetic storm interfered with telegraph communications around the globe. Sparks reportedly leapt from telegraph machines, shocking operators. In Boston, employees of the American Telegraph ...

Add Yahoo as a preferred source to see more of our stories on Google. Eyes to the sky tonight, for a chance to spot another amazing display of the Northern Lights! It all comes down to the exact ...

NORFOLK, Va. — After what we experienced Monday evening with a severe geomagnetic and solar storm, and even the northern lights reported very far south, a lot of people have been asking if space ...

Scientists have built the first-ever 3D model of the Sun’s interior magnetic field using satellite data, offering a new lens on solar activity. The research, published in The Astrophysical Journal ...

Solar flares and geomagnetic storms can have very significant effects on satellites, airplanes and GPS and electrical systems ...

ATLANTA — Powerful solar activity released by the sun is heading for Earth, and it's likely to create dazzling auroral displays in unexpected areas Monday evening and early Tuesday morning. It could ...

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 ...

As more than a foot of snow fell on parts of CT on Jan. 25, a massive shift was taking place within power plants across New ...

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

Richard Carrington’s name has long been connected with the most intense solar storm ever recorded, but his face was unknown until a lost portrait surfaced.