That storm is likely to be in the G4 class — the second-highest level on the SWPC's geomagnetic storm scale, which takes into account both severity and potential impacts.

A coronal mass ejection hurtling from the sun toward Earth could unleash the northern lights in up to 18 states in the US.

Missouri stargazers will have the opportunity to view the Perseid Meteor Shower, a full moon, and a geomagnetic storm watch in the next 5 days.

A coronal mass ejection hurtling from the sun toward Earth could trigger a geomagnetic storm, making the northern lights ...

Some “minor” geomagnetic storm levels are expected to pull the northern lights to more states, forecasters said.

Ionospheric Dynamics and Geomagnetic Storms Publication Trend The graph below shows the total number of publications each year in Ionospheric Dynamics and Geomagnetic Storms.

Space Weather and Geomagnetic Storms Publication Trend The graph below shows the total number of publications each year in Space Weather and Geomagnetic Storms.

The Northern Lights may be visible in U.S. states after space weather experts at NOAA forecast a geomagnetic storm.

The Power Mac G4 Cube was ahead of its time and riddled with errors—but it's still one of Apple's greatest risks.

Storm reports from the National Weather Service in Green Bay show a storm caused hail and wind damage in parts of three counties early Saturday morning.