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Hosted by Jad Abumrad and Robert Krulwich, Radiolab is a show about curiosity. Where sound illuminates ideas, and the boundaries blur between science, philosophy, and human experience.

Radiolab

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A journey through fascinating ideas, astonishing inventions, and new ways to think and create. Based on riveting TEDTalks from the world's most remarkable minds.
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TED Radio Hour

A journey through fascinating ideas, astonishing inventions, and new ways to think and create. Based on riveting TEDTalks from the world's most remarkable minds.

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The Pulse

The Pulse Archive

Composition of people faces, colors, organic textures, and flowing curves
The Pulse
Health

Who We Are at Core

Who are you? There are dozens of ways to answer that question, from your name and nationality, to your relationships and job, all the way ...

Air Date: August 6, 2021

Listen 48:59
Silhouette profile group of men women and girl of diverse culture
The Pulse
Health

The Role of Race and Ethnicity in Medicine

Every time you go to see a new doctor, you have to fill out forms that ask your name, your age, your family history — and your race and ...

Air Date: July 30, 2021

Listen 48:33
Nichole Jefferson (far left) is a kidney patient advocate based in Dallas, Texas. (Photo courtesy of Nichole Jefferson)
The Pulse
Health

How a clinical tool meant to predict kidney function could be hurting Black patients

Is an equation most commonly used to predict kidney health unintentionally contributing to health disparities — and reinforcing racist thinking?

5 years ago

Listen 21:17
An illustration of two birds talking to each other
The Pulse
Science

The Building Blocks of Language

Language is how we connect — to each other, to the past, to the future — how we create culture, communicate ideas, and make decisions ...

Air Date: July 23, 2021

Listen 48:51
A lab officer cuts a DNA fragment under UV light
The Pulse
Health

New Developments in Cancer Treatment

It seems like every week, we hear about new breakthroughs in cancer treatment — new discoveries, new medications, new hopes for a cure. ...

Air Date: July 16, 2021

Listen 48:45
A research technician works to clone DNA in an immunotherapy research lab. (Elaine Thompson/AP Photo)
The Pulse
Health

How a clinical trial cured cancer — in some cases

A researcher’s experience as a patient motivated him to find cures. He focused on cancers caused by the human papillomavirus.  

5 years ago

Listen 18:58
Close-up of virus cells or bacteria
The Pulse
Health

The Aftermath of Viruses

Left to their own devices, viruses are pretty much helpless. They need cells to infect in order to replicate. But they’re sneaky — ma ...

Air Date: July 9, 2021

Listen 49:49
Lt. John A. Kooistra, Jr.
The Pulse
Health

The Secret History of Mars Exploration

Humans have been obsessed with Mars for thousands of years, but it wasn’t until the mid-20th century that we began to have actual break ...

Air Date: July 6, 2021

Listen 13:11
A watercolor and collage illustration of Mars in space with satellites
The Pulse
Science

Destination: Mars

For thousands of years, humans have obsessed over Mars from afar. At first, maybe it was the fact that Mars stands out in the night sky b ...

Air Date: July 2, 2021

Listen 49:30
A self portrait of Curiosity from 2016. (NASA/JPL-Caltech/MSSS)
The Pulse
Science

How NASA repairs its rovers on Mars, without ever touching them

NASA's rovers are labs on wheels, doing work on Mars, while being directed by scientists and engineers here on earth. How do they repair rovers from millions of miles away?

5 years ago

Listen 8:30
Ed Guinan, a professor of astrophysics and planetary sciences at Villanova University, has been experimenting to see what could grow on Mars. (Courtesy of Ed Guinan)
The Pulse
Science

What will humans eat on Mars? Earthbound researchers are cultivating menu choices 

If or when humans get to the red planet, one of the next big questions is: What will they eat there? Would it even be possible to have a healthy or tasty diet?

5 years ago

Listen 4:53
Frustrated woman with nervous problem feel anxiety and confusion of thoughts illustration
The Pulse
Health

The Undercurrent of Anxiety

Anxiety can feel like a buzzing electric current that fuels our thoughts and behaviors. There are the well-known symptoms — chest pains ...

Air Date: June 25, 2021

Listen 49:19
Maiken Scott attempts to tamp down her over-the-top startle response. (Courtesy of Maiken Scott)
The Pulse
Health

Can you tamp down your over-the-top startle response?

Jumping at the slightest little thing can be annoying and embarrassing. Why do some people startle so easily, and can they do anything about it?

5 years ago

Listen 14:42
(melitas /Big Stock Photo)
The Pulse
Health

How to stop worrying and learn to love the unknown

People can reframe their relationship with uncertainty and that can help relieve some of their anxiety.

5 years ago

Listen 5:52
Illustration of two heads smelling foods and objects floatting around their heads
The Pulse
Science

How the Nose Knows

Our sense of smell can bring us quick bursts of joy, like a whiff of bread baking, that freshly brewed cup of coffee, or your favorite pe ...

Air Date: June 18, 2021

Listen 49:54
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The Pulse

The Pulse airs Fridays at 9am and Saturdays at Noon

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