It’s a bird! It’s a plane! It’s… an ad for cigarettes?! For the past 102 years, people have been using airplanes to turn exhaust into ads, political slogans, birthday greetings, and more. But where did this strangely brilliant idea come from? What kind of sorcery do pilots use to make it happen? And why is it at risk of becoming a lost art?

This episode originally aired on December 3, 2024.

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