Here’s what causes the aurora-like glow known as STEVE
Amateur astronomer images and satellite data reveal what causes the odd atmospheric phenomenon
![STEVE](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/04/042919_MT_steve_feat.jpg?fit=860%2C460&ssl=1)
SECRETS OF STEVE Satellite data are helping uncover the atmospheric processes behind STEVE, a weird sky glow composed of a purple streak and a queue of green light beams.
Rocky Raybell