It’s Okay to Be Smart

Why is the sky any color?

Season 1 Episode 4 | 2m 43s

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.

Aired: 03/12/13

Rating: NR

Problems Playing Video?