The solar maximum may be over, but the sun has still been busy with activity.

ABC News Chief Meteorologist Ginger Zee discusses the effects and impact of the geomagnetic storm expected for Tuesday.

A coronal mass ejection from the Sun is expected to arrive by midday, potentially causing “strong” geomagnetic storms and ...

NOAA is predicting a spectacular view for skywatchers from Washington, to Michigan, to New York and Maine Tuesday. Here’s ...

On Saturday, NOAA’s Space Weather Prediction Center (SWPC) noted that an M8.1 solar flare, “an eruption of energy from the ...

The same geomagnetic storm that makes aurora sightings likely can disrupt power systems, navigation signals, and satellites.

Solar flares and other activity can disrupt radio communications, power grids and navigation signals, according to NASA.

A powerful M8.1 solar flare sent a full-halo coronal mass ejection toward Earth, and scientists expect it to trigger strong ...

Get your cameras ready, because it could be time, once again, for the U.S. to see the northern lights. The National Oceanic ...

A strong geomagnetic storm watch has been issued for early this week.

A moderate geomagnetic storm watch has been issued, here's what to know and how far south the northern lights may come.