Audio podcast

The adventures of Professor Caillou: check out Season 3 of the podcast

BRGM and France Inter are launching Season 3 of "The Adventures of Professor Caillou" (Professor Stone). Aimed at 7-11 year-olds, this podcast enables young children to discover the world of rocks and minerals by following in the footsteps of Professor Pierrette Caillou and her colleague Abel, both geologists at BRGM.

21 July 2026

A new season of "The Adventures of Professor Caillou", the series of podcasts aimed at 7-11 year-olds

Professor Caillou, a keen geologist, and her faithful colleague Abel are both researchers at BRGM, the French Geological Survey, the official organisation responsible for all things relating to geology and the subsurface.

Thanks to the "cailloutolettre" (stone letter) – their special invention that allows elements to contact them when in need – they set off to rescue rocks and metals in distress, and share their adventures on Pierrette’s famous "podcast", aimed at children aged between 7 and 11 years old.

Iron, titanium, carbon, strontium, calcium and silver: in the six new episodes of Season 3 of the podcast, our two intrepid geologists help children learn about these chemical elements, by looking at the role of metals in our daily lives, exploring their geological origins and the challenges associated with their production and recycling.

Les aventures du Professeur Caillou - Bande-annonce de la saison 3

Découvrez la saison 3 des Aventures du Professeur Caillou, le podcast du BRGM avec France Inter.

6 new episodes to discover

Featuring the voices of Marine Baousson and Guillaume Vacher, and produced by Studio Radio France with BRGM, working with its scientists and popularisers, the podcast continues to attract young people to the Earth sciences, and could even inspire them to become geologists!

The 6 episodes of Season 3 are available on the Radio France app and franceinter.fr, as well as on Apple Podcasts, Spotify and Deezer.

The previous seasons are still available for anyone who wants to listen again to the early adventures of the Professor and Abel or to discover podcasts for the first time.

The Adventures of Professor Caillou – Season 3, Episode 1 – Iron

While re-reading Pierrette’s childhood diary, Abel discovers an unfinished story involving Iron. Intrigued, he and Ariane get in touch with the Professor to help her piece together her memories and find out more about this metal, which is essential to our planet’s balance.

The Adventures of Professor Caillou – Season 3, Episode 2 – Titanium

Back at BRGM, Professor Caillou discovers that her office has been turned into a workshop for wedding planning. At the same time, Titanium sends out a distress call from a mission in French Guiana, taking Abel and Pierrette on a new adventure in the field.

The Adventures of Professor Caillou – Season 3, Episode 3 – Carbon

Abel and Professor Caillou are worried when they receive a message from Carbon, which is enclosed in a diamond. To understand what is happening to Carbon, they plunge into the depths of the Earth, into the heart of an ancient volcano in South Africa.

The Adventures of Professor Caillou – Season 3, Episode 4 – Strontium

In the middle of a science quiz, Abel and Jean-Sylvain Gravier receive an unexpected call from Strontium. Starting from an alabaster statue housed in a museum, Strontium sets them a challenge: to uncover his origins through a scientific investigation carried out at the BRGM.

The Adventures of Professor Caillou – Season 3, Episode 5 – Calcium

Calcium invites Abel and Professor Caillou to join him in the underground passages of Paris. To give Pierrette a proper holiday, they climb aboard the Cailloumobile (Stone-mobile) and travel back in time to the Jurassic period, when Paris was covered by an ocean.

The Adventures of Professor Caillou – Season 3, Episode 6 – Silver

On the day of the Works Council elections, Silver sends a slightly angry letter to Abel and Professor Caillou. He is tired of being constantly compared to gold and invites them to find out more about his many qualities and history.