The sky isn't just blue – airglow makes it green, yellow and red too
(Version anglaise seulement)
par Michael J. I. Brown, Associate Professor in Astronomy, Monash University
Matthew Kenworthy, Associate professor in Astronomy, Leiden University
The sky looks blue on a sunny day – but at night we can see the faint glow of its true colour.
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jeudi 29 décembre 2022
