CALGARY, CANADA (WROC) — In a new study, researchers say a purple light in the northern sky doesn’t appear to be an aurora, but they can’t quite explain what causes it.

Wisps of green light swim through purple skies in this stunning image of the aurora borealis. Astrophotographer John Chumack took this image from a mountain location about 60 miles (96 kilometers ...

Imagine looking up on a dark winter night to see rippling ribbons of green and purple light dancing across the sky. The ...

Astronaut Terry W. Virts shared astonishing photos of purple aurora light in the night sky. Aurora light displays are the effects of solar winds interacting with Earth's atmosphere, NASA explains.

Citizen scientists looking at the northern lights appear to have stumbled upon a new natural phenomenon. Members of the Facebook group Alberta Aurora Chasers posted photos of a mysterious purple ...

"The sky was awash of translucent and slightly green and purple curtains of light," Matias wrote in an email to Space.com on July 2.

The Northern lights could light up the sky across 15 states tonight — including the Empire State.

In a new study, researchers say a purple light in the northern sky doesn’t appear to be an aurora, but they can’t quite explain what causes it. Researchers say the light, referred to as STEVE ...

Once again Mother Nature has outdone herself, as the newest tweets from astronaut Terry W. Virts show. He captured some stunning images of a plume-shaped aurora lighting up the night sky over the ...

In a new study, researchers say a purple light in the northern sky doesn’t appear to be an aurora, but they can’t quite explain what causes it. Researchers say the light, referred to as STEVE ...