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It's Okay to Be Smart
Mars Used to Be Blue... Then Something Happened
Season 13
Episode 12
Why is the Martian sky red by day… but blue at sunset? And how did it used to look more like Earth? The strange story of Mars’ skies can reveal a lot about the Red Planet's past, and the surprising ways it is more like Earth than you may know.
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27:32
How science unraveled one of the biggest myths in modern medicine...HIV's true origins.
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I pushed my body in a climate & sports research lab to discover what extreme heat really does to us.
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How Gerardus Mercator later created a map that transformed navigation forever.
22:37
DNA solves crimes, but what happens when it sends innocent people to prison?
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22:36
How did the mass extinction of the dinosaurs play out, moment by moment?
12:37
Think traits like eye color or tongue-rolling are simple genetics? Think again.