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It's Okay to Be Smart
Is There Intelligent Life Beyond Earth?
Season 2
Episode 10
Now that we know planets are common in our galaxy, how would we tell if one holds life? Sure, it will take incredibly powerful telescopes and ambitious new space missions, but what are we looking for? What are we listening for? How do we help other worlds know that we are here?
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9:42
We explore why animals like whales, elephants, and other large animals not get cancer.
10:16
The real magic of mirrors is far stranger and more interesting, as you’re about to learn.
17:56
Neuroscientist David Eagleman talks about illusions that make the moving picture possible.
15:15
We explore what we can actually do about pollution.
9:21
The biggest thing that has ever lived on Earth… is a tree? Hard to believe, but it’s true!
15:33
We travel to Great Sand Dunes National Park to climb the largest sand dunes in America.
