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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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Do you know the true story of how his famous experiment changed the world?
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8:57
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12:54
Addressing a few of the most common myths & misunderstandings using scientific evidence.
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7:46
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