While geomagnetic storms can lead to gorgeous aurora displays, they can also damage satellites and GPS.

Humans evolved late in Earth history. While this timing inspired the conclusion that humanlike life is a cosmic improbability, a new study pushes back.

Argentina and Chile will see the ‘ring’, but other regions will see a partial eclipse.

Parts of South America, the Pacific and Antarctica are under the path of an annular eclipse.

Extreme solar storms could play havoc with technological infrastructure.

For years, researchers have wondered what energy source allows the solar wind − a projection of charged particles from the Sun − to rush by at hundreds of miles a second.

The Sun will be at its most explosive right around the time NASA plans to put people back on the Moon.

An interstellar probe could help scientists answer fundamental questions about how the Sun influences Earth, space and other planets in the solar system.

Here’s what’s going on to cause more widespread northern and southern lights.

Solar storms can play havoc with electrical grids, satellites and railway lines.