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 ...

The northern lights, also known as the aurora borealis, are one of nature's most spectacular displays. Auroras occur when charged particles from the sun collide with gases in Earth's upper atmosphere.

Incredible photographs of the aurora borealis geomagnetic storm were shared on social media by people across the UK. The Met Office had said it expected conditions to be optimum in most regions ...

(Photo by Patrick ... More Pleul/picture alliance via Getty Images) Saturday night’s aurora borealis forecast has a Kp index of 3, a measure of strength on a scale of 0 to 9, indicating “more ...