99% Invisible

99% Invisible

Design is everywhere in our lives, perhaps most importantly in the places where we've just stopped noticing. 99% Invisible is a weekly exploration of the process and power of design and architecture. From award winning producer Roman Mars. Learn more at 99percentinvisible.org.

Episodes

April 14, 2026 31 mins

One study from 2018 found that Major League Baseball umpires blow about 14 calls every game. That’s 34,000 bad calls every year. And it makes a difference. A blown strike call can decide a win or a loss, a championship or six months at home, wondering what could have been. And while umpires are about 97% accurate in calling balls and strikes, Major League Baseball has been considering something drastic. Something to take us up to 1...

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A missing car reveals the confusing rules, murky fees, and private actors behind modern towing.

What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to servicerequest@99pi.org.

Service Request is a production of 99% Invisible and Campside Media.

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In a place where losing power can turn deadly, keeping the lights on is a high-stakes balancing act.

What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to servicerequest@99pi.org.

Service Request is a production of 99% Invisible and Campside Media.

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Why did it take nearly a decade to redesign a city trash can, and why haven't more bins made the streets cleaner?

What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to servicerequest@99pi.org.

Service Request is a production of 99% Invisible and Campside Media.

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March 27, 2026 66 mins

This is the eighth episode of our ongoing series breaking down the U.S. Constitution.

This month, Roman and Elizabeth discuss Article V, which lays out the process to amend the Constitution.

Then, Jill Lepore lays out her thesis that the Constitution is truly meant to be amended, explains why Article V amendments have become functionally impossible, and tells some fascinating stories about the people who have championed amendments.

...

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What the world's most advanced traffic system can—and can't—do for the city that invented gridlock.

What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to servicerequest@99pi.org.

Service Request is a production of 99% Invisible and Campside Media.

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The surprising power of a simple phone number to connect a community.

What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to servicerequest@99pi.org.

Service Request is a production of 99% Invisible and Campside Media.

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March 10, 2026 32 mins

How one wealthy, amateur astronomer convinced the world Martians were real.

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March 3, 2026 47 mins

For centuries, the world's greatest minds were stumped by the deadly mystery of longitude, until an obsessive underdog entered the fray and changed navigation forever.

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This is the seventh episode of our ongoing series breaking down the U.S. Constitution.

This month, Roman and Elizabeth discuss Article IV, which outlines the relationship between states and between states and the federal government. They add the 10th Amendment to the conversation, because that also talks about the states.

Then, California Attorney General Rob Bonta joins to talk about how his office is using Article IV and the 10th...

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February 24, 2026 31 mins

How a fence meant to protect sheep transformed the entire Australian landscape.

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February 17, 2026 41 mins

How a small Mexican border town transformed itself into the dental tourism capital of the world, where dental care costs up to 80% less than what it might cost in the United States.

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February 10, 2026 33 mins

Idaho was the first state to slap a slogan on a license plate, “Idaho Potatoes,” which may not seem like a big deal, but it turns out this idea would end up having outsized consequences, and not just for Idaho. Because what started in one state would soon spread. And when it did, the question of what should go on a license plate, and what shouldn't, would prove surprisingly contentious.

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February 3, 2026 39 mins

The strange history of a punctuation mark that makes writing feel human, and why people now think it proves the opposite.

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January 30, 2026 60 mins

This is the sixth episode of our ongoing series breaking down the U.S. Constitution.

This month, Roman and Elizabeth discuss Article III, which establishes the judicial branch, alongside New York Times chief legal affairs correspondent, Adam Liptak.

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January 27, 2026 26 mins

Throughout Africa and beyond, Zimbabweans are known for choosing some of the most bold, head-turning English-language names. Zimbabwean producer Kim Chakanetsa tells the story of how her country's journey from colonial rule to independence shaped the nation's unique naming traditions.

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January 20, 2026 37 mins

This week we're featuring Audio Flux, a short-form audio challenge where artists squeeze surprising stories into three minutes.

Find out more about Audio Flux by visiting audioflux.org

Follow Audio Flux on Instagram: @audiofluxing

Featured Audio Flux stories include:

  • The Sound of Silence by Gregory Warner and Sana Krasikov
  • In Between Silence by Talia Augustidis
  • The Ghost on Side B by Katelyn Hale Wood with sound design by Alan Goffin...
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January 13, 2026 36 mins

A young designer faces an impossible brief and discovers the spark that will define his legendary career.

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January 6, 2026 33 mins

Performance changing gear, a Titanic era nurse with unbelievable resilience, and an ingenious art vending project reveal how innovation and endurance shape unexpected worlds.

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December 30, 2025 39 mins

From rogue stop signs to rooftop mini golf, discover how chaos and creativity quietly shape the urban world.

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