Steve’s twin captured by an all-sky digital camera

Ever since aurora chasers discovered Steve, a mysterious ribbon of purple light in the night sky, scientists have wondered whether it might have a secret twin. Now, thanks to a photographer’s keen eye, and data from ESA’s Swarm satellites, we may have found it. The photograph here was captured by the all-sky digital camera at the Ramfjordmoen Research Station in Norway.

Read full story: Swarm helps discover Steve's long-lost twin