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Amateur astronomers’ images of a rare double aurora may unlock its secrets

The images may solve a long-standing mystery behind a curious kind of sky glow

night sky photo of a double aurora (in green and red)

Capturing two different kinds of aurora (the red and green bands seen here) at the same time, new images have revealed that the mysterious red glow might be caused by electrons raining down through the atmosphere.

© 2021 Alan Dyer/AmazingSky.com

By Asa Stahl

- More than 2 years ago

Read another version of this article at Science News Explores

What happens when two different kinds of auroras get together? One spills the other’s secrets.