The sky isn’t just blue — airglow makes it green, yellow, and red too The sky looks blue on a sunny day. But at night, we can see the faint glow of its true color.

The sky isn’t just blue – airglow makes it green, yellow and red too Published: December 29, 2022 3:56pm EST Michael J. I. Brown , Monash University , Matthew Kenworthy , Leiden University ...