coronal mass ejections

A massive new sunspot complex, dubbed AR 4294-4296, has emerged on the sun and is facing directly at Earth. The dark patch is on par with the infamous sunspot that birthed the 1859 Carrington Event — but, for now, it's staying quiet.

In a small blow to the search for extraterrestrial life, a nearby star shot out a strong enough coronal mass ejection to strip away the atmosphere of any rocky planets that could have been in the way.

A geomagnetic storm could hit Earth Aug. 8 or 9, possibly bringing the dazzling northern lights with it.

A powerful solar outburst hit Earth Thursday, triggering a "severe" geomagnetic storm. Auroras could be visible as far south as California and Alabama, NOAA predicts.

Vibrant auroras could be visible as far south as Oregon and Pennsylvania tonight as Earth reels from a "strong" G3-class geomagnetic storm. However, the nearly full Harvest Moon may complicate viewing opportunities.

Auroras may once again be visible in northern parts of the U.S. this weekend as Earth braces for impact from a powerful coronal mass ejection.

Earth was hit by a "severe" G4-class geomagnetic storm on Monday morning, increasing the chances of auroras in the northern U.S. tonight.

A massive disturbance in the solar wind caused Earth’s magnetosphere to fly without its usual tail.

Vibrant auroras that were recently observed by millions of people across the globe were some of the most widespread in the last five centuries, NASA says. The light shows may have also reached the equator.

Between Friday (May 10) and Sunday (May 12), people across the world were treated to stunning aurora displays as Earth's magnetic field experienced its biggest disturbance since October 2003. The supercharged storm also messed with satellites and caused power grid irregularities.