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It’s Okay to Be Smart

Why is the sky any color?

Video duration: 2:43

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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Life by the Numbers

Life by the Numbers

How successful are we compared to other species? It turns out that biomass, or what things weigh, can be mo...

The Auroras

The Auroras

Space might seem like an empty place, but the area surrounding Earth is constantly being bombarded by waves...

Episodes of It’s Okay to Be Smart125

Video thumbnail: It’s Okay to Be Smart Does Evolution Have a Point? 12 Days of Evolution #12

It’s Okay to Be Smart

Does Evolution Have a Point? 12 Days of Evolution #12

Some of the biggest evolution questions finally answered.

2:51

Does Evolution Have a Point? 12 Days of Evolution #12

2:51

Video thumbnail: It’s Okay to Be Smart Are Humans Still Evolving? 12 Days of Evolution #11

It’s Okay to Be Smart

Are Humans Still Evolving? 12 Days of Evolution #11

Some of the biggest evolution questions finally answered.

1:27

Are Humans Still Evolving? 12 Days of Evolution #11

1:27

Video thumbnail: It’s Okay to Be Smart Why Are There Still Monkeys? - 12 Days of Evolution #10

It’s Okay to Be Smart

Why Are There Still Monkeys? - 12 Days of Evolution #10

Some of the biggest evolution questions finally answered.

1:25

Why Are There Still Monkeys? - 12 Days of Evolution #10

1:25

Video thumbnail: It’s Okay to Be Smart Can Evolution Create Information? - 12 Days of Evolution #9

It’s Okay to Be Smart

Can Evolution Create Information? - 12 Days of Evolution #9

Some of the biggest evolution questions finally answered.

1:28

Can Evolution Create Information? - 12 Days of Evolution #9

1:28

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