Episode Archives

TTBOOK and Center for Humans and Nature present Deep Time

When you’re on the clock, you’re always running out of time. The relentless countdown is making us and the planet sick. But clock time isn’t the only kind. There are older, deeper rhythms of natural time.  We just forgot how to listen.Read more

Original Air Date:

June 03, 2023

To The Best of out Knowledge presents Luminous

In this episode of "Luminous," we go inside Usona Institute’s chemistry lab and go deep with co-founder Bill Linton about what brought him to this unique moment in the psychedelic revolution.  Read more

Original Air Date:

May 17, 2023

A mother and child

We celebrate Mother's Day with a collection of stories from our archives, by and about moms. Stories about care and about courage — about the work of mothering.Read more

Original Air Date:

May 13, 2023

Clockwise from the left: a fossilized leaf, an orangutan, a rowing team, a microscope view

In some of our favorite science interviews — discover the joy of studying fossils, the invention of a paper microscope, and the astrophysics of making a hard-boiled egg.Read more

Original Air Date:

April 22, 2023

TTBOOK Presents Luminous episode 1. A door with magical colors coming out.

In the first episode in our series about psychedelics, how can psilocybin ease our fears about dying and help us make peace with the end of our lives?Read more

Original Air Date:

April 08, 2023

A shattered person.

You're not even out of bed and you're already worrying. So let's talk about it: How anxious we are, how we got that way, and what to do about it.Read more

Original Air Date:

March 25, 2023

A wonderous wood

Maybe there’s something missing in your life you can’t quite explain. It might be that you need to re-discover your sense of wonder.Read more

Original Air Date:

March 18, 2023

an infinite bookcase

Debates over American history are front-page news, and a new generation of public historians is re-shaping our national narrative.Read more

Original Air Date:

February 25, 2023

the many ills of capitalism

Radical politics and radical movements are on the rise everywhere. Maybe they're all — in one way or another — a rebellion against capitalism.Read more

Original Air Date:

February 11, 2023

Athlete Jim Thorpe

A Native American hero — one of the greatest athletes the world has ever known — is now being celebrated by a new generation.Read more

Original Air Date:

January 14, 2023

an african imagination of the future.

Wakanda is a very American version of an idealized African future. So how do African science fiction writers tell stories about their own imagined future?Read more

Original Air Date:

December 10, 2022

workers waiting for a job interview

In this final part of our series, we’re talking about work — specifically the right to meaningful work.Read more

Original Air Date:

November 19, 2022

Recent Rebroadcasts

woman on beach

Summer reading lists are full of so-called "beach books." But if you’ve got enough time to lounge by a pool or swing in a hammock, why not tackle something more substantial?Read more

Previous Airdates:

July 13, 2019
July 11, 2020
June 12, 2021
June 18, 2022
June 03, 2023


Exchanging glances with the natural world happens more often than you’d think. It can be so profound, there’s a name for it: eye-to-eye epiphany.Read more

Previous Airdates:

February 08, 2020
October 03, 2020
June 26, 2021
August 20, 2022
May 27, 2023

underground cave

Scientists and explorers have found a whole new world under our feet. It's an exciting place, and it's changing what we know about the planet and ourselves.Read more

Previous Airdates:

November 02, 2019
July 18, 2020
February 27, 2021
October 23, 2021
July 16, 2022
May 27, 2023

A bunch of stuff

We surround ourselves with possessions, but at what point do they start to possess us?Read more

Previous Airdates:

September 05, 2020
May 29, 2021
December 18, 2021
July 30, 2022
May 20, 2023

seeds on the horizon

As monocropping and agribusiness continue to dominate modern farming, we speak to farmers, botanists and indigenous people about how they are reclaiming our seeds.Read more

Previous Airdates:

September 14, 2019
May 30, 2020
March 27, 2021
November 13, 2021
July 02, 2022
May 20, 2023

Mushroom wonder

We owe our past and future existence on Earth to fungi. Some can heal you, some can kill you, and some can change you forever.Read more

Previous Airdates:

June 08, 2019
May 02, 2020
May 08, 2021
April 09, 2022
May 13, 2023

Working and parenting, a balancing act

The pandemic has made clear that parents are walking a tightrope with no safety net. Is it time for a parenting revolution?Read more

Previous Airdates:

May 22, 2021
January 08, 2022
August 20, 2022
May 06, 2023

A brain alive with energy

New experiences rewire the brain. So after all we’ve been through, are we different? We consider the "COVID brain" in both neuroscience and the arts.Read more

Previous Airdates:

October 10, 2020
June 12, 2021
January 15, 2022
August 06, 2022
May 06, 2023

Woman in profile

Colonization in Africa was much more than a land grab. It was a project to replace — and even erase — local cultures. How can that be undone?Read more

Previous Airdates:

March 20, 2021
November 06, 2021
July 09, 2022
April 29, 2023