#STEVE: During last night's geomagnetic storm, Jody Majko of Bragg Creek, Alberta, went outside to look for auroras. Instead, there was STEVE:

"STEVE decided to make an appearance for a couple of hours shortly after midnight," says Majko. "It beamed from the north horizon almost to the south horizon--the brightest I've ever seen it!"

STEVE (Strong Thermal Emission Velocity Enhancement) looks like an aurora, but it is not. The phenomenon is caused by hot (3000°C) ribbons of gas flowing through Earth’s magnetosphere at speeds exceeding 6 km/s (13,000 mph). These ribbons appear during some geomagnetic storms, revealing themselves by their soft #purple #glow.

https://spaceweather.com/