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It's Okay to Be Smart
Where Did Earth's Water Come From?
Season 6
Episode 14
Why is Earth is a blue planet? Because it’s covered in water! Where did Earth’s water come from? Of course, water isn’t unique to our planet. The origin of water traces beyond the solar system to the earliest days of the universe. Here’s the story of the galaxy’s H2O.
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14:49
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We explore why embarrassment has lasted through evolution and its function.
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13:41
The secret is In order to know WHERE you are, you need to first know WHEN you are.
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12:44
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27:56
We learn about all the reasons that Earth’s climate changes, natural and otherwise.
12:31
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10:00
Join Joe in this whirlwind tour of the endocrine system to find the answers.