A strong solar storm headed to Earth could produce colorful aurora displays across more U.S. states than usual Tuesday night.

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

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

About 41,000 years ago, Homo sapiens may have survived increased solar radiation caused by a weakening magnetic field by ...

Neutron star mergers are collisions between neutron stars, the collapsed cores of what were once massive supergiant stars.