A hidden magnetic island inside a coronal hole unleashed a surprise G3 storm, sparking dazzling displays across the US.

According to the National Oceanic and Atmospheric Administration (NOAA), a geomagnetic storm might make the Northern Lights ...

Initially, the forecasters predicted minor to moderate (G1-G2) storms, but the hidden island turned it into a strong G3 storm ...

At G3 the storm is considered "strong", but it is also strengthened by something known as the "Russell-McPherron Effect".

A huge butterfly-shaped hole on the Sun may cause geomagnetic storms and auroras as solar wind heads directly for Earth.

Charged particles from the Sun fueled a strong geomagnetic storm from late Sunday into Monday, delivering impressive displays ...

Geomagnetic storms are caused by solar winds or coronal mass ejections (CMEs) from the Sun that collide with Earth's magnetic field. These interactions disturb the magnetic field and can lead to power ...

The northern lights will be more visible than previously expected Sunday night, according to the National Oceanic and ...

Sky-watchers in the United States might witness the Northern Lights. The National Oceanic and Atmospheric Administration ...

Minnesota residents may have a chance to see the Northern Lights overnight, as the NOAA is forecasting a “strong" geomagnetic storm that will peak early Tuesday morning.

Forecasters warn of possible G2 geomagnetic storms as a colossal coronal hole sends solar wind racing our way.

A Geomagnetic Storm Watch has been issued for late Monday into early Tuesday, which means Northern Lights could be visible across Michigan on Labor Day and in the skies over a large swath of the U.S.