First up, Edgar interviews Dr. Jim Faust about his nonprofit Adam’s Parachute, bringing people suffering from substance addiction into the world of fly fishing. He’ll join alongside GBH report Craig LeMoult ahead of Craig’s forthcoming reporting.

Then, the grocery aisles are packed with all different options for salt. Table, iodized, sea, Celtic, gray, pink Himalayan – does it matter which you use? We get some consult from Dan Souza from America’s Test Kitchen.

Lastly, Edgar brushes up on the history of the toothbrush with Dr. Scott Swank, curator at the National Museum of Dentistry in Baltimore.

First up, we're airing Edgar’s conversation with MIT physicist Pablo Jarillo-Herrero. Pablo tries to explain his research in the field of twistronics in the time it takes to finish a cone of soft serve ice cream. There’s a video version of the conversation also airing today on the GBH YouTube channel.

Then, it's another round of Four Things To Know with Gal Tziperman Lotan from the GBH Daily newsletter.

Lastly, we're opening up phone and text lines for “Ask the Dog & Cat behaviorist,” with Rachel Geller from All Cats All the Time and Kate Bigger from High Fidelity Dogs.

July 13, 2026

First up, Migration Policy Institute senior fellow Muzaffar Chishti explains the phenomenon of birth tourism in the U.S., and whether it’s as prevalent as some anti-immigration advocates claim.

Then, Author Rachel Hartigan dives into the life of Amelia Earhart in a conversation about her book Lost: Amelia Earhart's Three Mysterious Deaths and One Extraordinary Life.

Lastly, Social media companies have gotten really good at grabbing our attention. Have we reached a point where society ought to regulate just how addictive they’re allowed to be? Edgar parses the emerging legal field of attention law, with John Newman from U Memphis and Elettra Bietti from Northeastern.

July 9, 2026

First up, MIT economist Jon Gruber reflects on why independent government agencies matter, following the Trump v. Slaughter ruling by the Supreme Court.

Then, we're airing Edgar’s new Curiosity Desk feature on the deployment of Waymo taxis in Boston.

Afterwards, Animal behaviorist Jennifer Verdolin joins to discuss what humans can learn about friendship from elephants.

Finally, ATC host Arun Rath returns to perform some mentalist magic on The Mystery Desk.

July 8, 2026

Today, Edgar is joined by NPR World Cup correspondent Jasmine Garsd for "The World Cup Effect," a national special exploring how the World Cup is changing our perceptions of the rest of the world, and how the rest of the world’s perceptions of us are changing.

The driving question: Can a global sporting event bring the US and the world closer together? And if so, can it last? Edgar & Jasmine talk to reporters from around the country to find out.

July 7, 2026

It’s an AI news panel, this week focused on labor and workforce issues. We’ll hear from AI ethicists Nir Eisikovits & J. Hughes, and Boston Globe tech reporter Hiawatha Bray.

It’s another round of Four Things to Know, with Aidan Connelly & Gal Tziperman Lotan.

Edgar ​meets Adam Golub from the Generations Project & Charlotte Tragard from the Ogunquit Heritage Museum for a conversation about how Provincetown & Ogunquit became gay resort destinations.

First up, Edgar talks with ReFED Executive Director Sara Burnett and John Hopkins researcher Roni Neff about what “sell by” labels on food packages actually mean, in light of California’s ban aimed at reducing food waste.

Then, we meet mentalist Tom Indigo, who reads the minds of our host Edgar and volunteer Eva Doyne.

June 25, 2026

First up, it’s the latest edition of “The Glitch Report," with Joan Donovan from the Critical Internet Studies Institute. She'll discuss what she calls the "Election Fraud Doom Loop", political conspiracy theories, and general distrust of government officials.

Ahead of the event Disability ReFramed: Celebrating Our Childhood on TV, we look back at disability-related programming of GBH past with Senior Accessibility Specialist Claire Houston & media historian Michelle Kelley.

Lastly, Edgar catches up with Hakeem Oluseyi, host of the NOVA podcast “Particles of Thought."