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It's Okay to Be Smart
Why is the sky any color?
Season 1
Episode 4
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.
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We explore what we can actually do about pollution.
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The biggest thing that has ever lived on Earth… is a tree? Hard to believe, but it’s true!
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We travel to Great Sand Dunes National Park to climb the largest sand dunes in America.
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There are parts of you that are living and dying at the same time. We find out how much.
12:27
This episode is about the science and evolutionary history of...butts.
