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

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.

The eclipse will allow scientists to get rare measurements of the Sun’s atmosphere.

Data from the Parker Solar Probe bolster theories about a long-running mystery: why the sun's outer atmosphere is hotter than its fiery surface.

Alfvén waves, first proposed 80 years ago, could explain why the sun's atmosphere is so much hotter than its surface.

The Earth's magnetic field was most likely weaker when life evolved on our planet than it is today.

The Parker Solar Probe data clarifies the sun's magnetic activity—and may bolster our ability to predict dangerous solar wind events, researchers say.

There's a protective bubble around our solar system called the heliosphere. New research may bridge the divide between two major theories.