NOAA projected Saturday night’s northern lights would have a Kp index of 3, a measure of the aurora’s strength on a scale of ...

Sky-watchers around the world were treated to rare, dazzling displays of the northern lights over the weekend, as the glowing phenomenon, which is usually seen close to the Arctic Circle ...

A minor-to-moderate geomagnetic storm may produce a strong northern lights show in some of the northernmost U.S. states ...