The Earth is prone to more geomagnetic storms during the spring and fall equinoxes than throughout the solstices.

A potential geomagnetic storm is expected to impact Earth on Wednesday, September 25, following a large eruption from sunspot ...

Astrophotographer Miguel Claro captured an incredibly detailed timelapse of solar activity, revealing a roiling sun sprouting ...

Solar flares are a fascinating thing and have a profound effect on what astronomers refer to as "space weather." These events ...

The sunspot AR3835 erupted on Sunday (Sept. 22) during Earth's equinox when even a glancing blow can cause a geomagnetic ...

Watch: Red Sox manager Alex Cora was ejected after arguing an interference call Sunday. Read more on Boston.com.

Coronal mass ejections, or CMEs, can cause both the northern lights and widespread telecommunications disruptions. But could ...

Geomagnetic storms have pushed the Northern Lights farther south than usual, with sightings reported as far as Mississippi, ...

Sunspot AR3500 blasted a M9.8-class solar flare. NASA's Solar Dynamics Observatory captured footage of the flare in multiple ...

NOAA: Aurora borealis view line map for Friday, Sept. 20, includes the northern Midwest states of the United States.