A spot on the sun’s surface will likely disrupt Earth’s magnetic field, pulling the phenomenon to more states, forecasters said.

The northern lights, which can appear green, pink and blue, are the result of geomagnetic storms. The more severe the storm, ...

Saturday’s northern lights forecast is calmer than earlier this week, when a severe geomagnetic storm prompted lights visible ...

The solar eruption set Earth's skies ablaze, with vibrant auroras visible across the Northern and Southern Hemispheres.

A geomagnetic storm unleashed by the sun on Sunday could create colorful auroral displays over parts of the United States ...