The quiet arrival offers another indication that the sun is moving into the declining phase of its 11-year cycle.

Skywatchers in up to 18 U.S. states could witness auroras in the coming days as a "moderate" geomagnetic storm rocks Earth's magnetic field, starting on Friday (June 13). On Wednesday (June 11), the ...

A ‘cannibal solar storm’ is hitting Earth on Sept. 1. The storm is called as such because the sun is expected to release two solar ejections, and one will engulf the other. "There’s a chance that we ...

A solar storm occurs when the magnetic fields of the sun get twisted enough from its rotation that they snap. When this happens, they release massive amounts of energy into space. We are not in direct ...

The sun has burped out bursts of energy called coronal mass ejections that could reach Earth Tuesday night. Forecasters said ...

Increased solar activity causes auroras that dance around Earth’s poles, known as the northern lights, or aurora borealis, ...