Red is nature's warning signal, and blue was already taken by the sky, so the on... | Hacker News

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		amelius 26 days ago \| parent \| context \| favorite \| on: New colors without shooting lasers into your eyes Red is nature's warning signal, and blue was already taken by the sky, so the only option left was green. Just kidding of course, it is an interesting question.

amelius 26 days ago [–]

Maybe it has something to do with keeping the albedo of the planet at a higher value.

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