Radiolab is on a curiosity bender. We ask deep questions and use investigative journalism to get the answers. A given episode might whirl you through science, legal history, and into the home of someone halfway across the world. The show is known for innovative sound design, smashing information into music. It is hosted by Lulu Miller and Latif Nasser.
When neuroscientist Madeline Lancaster was a brand new postdoc, she accidentally used an expired protein gel in a lab experiment and noticed something weird. The stem cells she was trying to grow in a dish were self-assembling. The result? Madeline was the first person ever ...
In 1971, a red-headed, tree-loving astronaut named Stu ‘Smokey’ Roosa was asked to take something to the moon with him. Of all things, he chose to take a canister of 500 tree seeds. After orbiting the moon 34 times, the seeds made it back to Earth. NASA decided to plant the ...
As she -- and her friends — approached the age of 35, senior correspondent Molly Webster kept hearing a phrase over and over: “fertility cliff.” It was a short-hand term to describe what she was told would happen to her fertility after she turned 35 — that is, it would drop ...
The standard view of evolution is that living things are shaped by cold-hearted competition. And there is no doubt that today's plants and animals carry the genetic legacy of ancestors who fought fiercely to survive and reproduce. But in this hour that we first broadcast bac...
It’s faster than a speeding bullet. It’s smarter than a polymath genius. It’s everywhere but it’s invisible. It’s artificial intelligence. But what actually is it?
Today we ask this simple question and explore why it’s so damn hard to answer.
Special thanks to Stephanie Yin ...
A year ago we brought you a show called Shell Game where a journalist named Evan Ratliff made an AI copy of himself. Now on season 2 of the show, Evan’s using AI to do more than just mimic himself — he’s starting a company staffed entirely by AI agents, and making a podcast ...
Our original host Jad Abumrad returns to share a new podcast series he’s just released. It’s all about Fela Kuti, a Nigerian musician who created a genre, then a movement, then tried to use his hypnotic beats to topple a military dictatorship. Jad tells us about the series a...
Today on the show, we’re bringing you an episode from Our Common Nature (https://link.podtrac.com/v7mx144d), a new podcast series where cellist Yo-Yo Ma and host Ana González travel around the United States to meet people, make music and better understand how culture binds u...
Qasem Waleed is a 28-year-old physicist who has lived in Gaza his whole life. In 2024, he joined a chorus of Palestinians sharing videos and pictures and writing about the chaos and violence they were living through, as Israel’s military bombardment devastated their lives. B...
When we think of China today, we think of a technological superpower. From Huawei and 5G to TikTok and viral social media, China is stride for stride with the United States in the world of computing. However, China’s technological renaissance almost didn’t happen. And for on...
A call to oceanographer Edie Widder about a fish with a very odd immune system quickly becomes something else: a dive into the deep sea, into a world of brilliant light. But down there, the light doesn’t behave like light -- it sparkles and glows, but also drips, squirts, an...
Love it or hate it, the freedom to say obnoxious and subversive things is the quintessence of what makes America America. But our say-almost-anything approach to free speech is actually relatively recent, and you can trace it back to one guy: a Supreme Court justice named Ol...
Over the past five years TikTok has radically changed the online world. But trust us when we say, it’s not how you’d expect.
Today we continue our yearslong exploration of what you can and can’t post online. We look at how Facebook’s approach to free speech has evolved since...
Ella al-Shamahi is one part Charles Darwin, one part Indiana Jones. She braves war zones and pirate-infested waters to collect fossils from prehistoric caves, fossils that help us understand the origin of our species. Her recent hit BBC / PBS series Human follows her around ...
This is the story of a three-year-old girl and the highest court in the land. The Supreme Court case Adoptive Couple v. Baby Girl is a legal battle that has entangled a biological father, a heart-broken couple, and the tragic history of Native American children taken from th...
Over the course of millions of years, human voices have evolved to hold startling power. These clouds of vibrating air carry crucial information about who we are–and we rely on them to push ourselves up and out into the physical world.
This week, we’re on a journey to unders...
In the 1920s, a Russian biologist studying onion roots made a surprising discovery: underground, down in the darkness, it seemed like the cells inside the onion roots were making their own … light.
The “onion root experiment” went on to become something of a cult class...
How a group of 80’s Cuban misfits found rock-and-roll and created a revolution within a revolution, going into exile without ever leaving home. Reporter Luis Trelles brings us the story of punk rock’s arrival in Cuba and a small band of outsiders who sentenced themselv...
In August we performed a live taping of the show from a theater perched on the edge of Manhattan, overlooking the Hudson River, overshadowed by the wide open night sky. Three stories about voids. One about a fish that screams into the night – and the mystery of its counterpa...
With this episode, we’re putting on our music hat. For a program that relies so much on scoring and sound, it’s not often we talk about the musicians and the music they make that inspire us. Today, that changes. Today, we bring you two stories. Each about musicians that our ...
As he finished his medical school exam, David Fajgenbaum felt off. He walked down to the ER and checked himself in. Soon he was in the ICU with multiple organ failure. The only drug for his condition didn’t work. He had months to live, if that. If he ...
In an episode first released in 2010, then-producer Lulu Miller drives to Michigan to track down the endangered Kirtland’s warbler. Efforts to protect the bird have lead to the killing of cowbirds (a species that commandeers warbler nests), and a prescribed burn aimed at cre...
Until recently, scientists assumed humans were the only species in which females went through menopause, and lived a substantial part of their lives after they were no longer able to reproduce. And they had no idea why that happens, and why evolution wouldn’t push females to...
This week: the story of astrophysicist Charity Woodrum. Charity is an extragalactic astronomer who studies the life and death of galaxies, why some galaxies burn bright and others dim and sputter out. And in the midst of an unthinkable grief in her personal life, she discove...
This week, two conversations from the archives about parts of the world that are imperceptible to us, verging on almost unthinkable. We start with a moment of uncertainty in physics. Inspired by an essay written by physicist and novelist Alan Lightman, called The Accidental ...
Back in 2017 our colleagues at More Perfect gathered a room full of people together to debate a straight forward question: Can free speech go too far? Today, eight years have passed and plenty has changed, but this question feels alive as ever.
And so we’re re-airing M...
This hour of Radiolab, former co-hosts Jad and Robert set out in search of order and balance in the world around us, and ask how symmetry shapes our very existence -- from the origins of the universe, to what we see when we look in the mirror.
Along the way, we look for love...
Have you heard On the Media’s Peabody-winning series The Divided Dial? It’s awesome and you should, and now you will. In this episode they tell the story of shortwave radio: the way-less-listened to but way-farther-reaching cousin of AM and FM radio. The medium was once...
Jilted lovers and disrupted duck hunts provide a very odd look into the soul of the US Constitution.
What does a betrayed lover’s revenge have to do with an international chemical weapons treaty? More than you’d think. From poison and duck hunts to our feuding fathers, we st...
This is episode five of Swimming with Shadows: A Radiolab Week of Sharks.
Today, the strange, squirmy magic behind how sharks make more sharks. Drills. Drama. Death. Even a coliseum of baby sharks duking it out inside mom’s womb. And a man on a small island in the Mediterran...
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