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# Why is the sky any color?
- URL: https://www.cascadepbs.org/show/its-okay-be-smart/episode/its-okay-be-smart-why-sky-any-color/
- Published: 2024-04-02T23:16:50.000Z
- Updated: 2025-08-20T09:55:39.000Z
- Description: Why is the sky blue? Or red at sunset? Or any color at all? Joe Hanson explains.
- Author: Cascade PBS Staff
- Tags: Be Smart, Season 1, Episode 4, #ZZZ_Episode_56b7d008-b7e7-49cc-b339-a97e2818ff91, #episode, #ZZZ_Show_dc38a6e9-266e-43c1-b647-45e7445fad27, #v1.16

Why is the sky blue? It's a question that you'd think kids have been asking for thousands of years, but it might not be that old at all. The ancient Greek poet Homer never used a word for blue in The Odyssey or The Iliad, because blue is one of the last colors that cultures pick out a word for.