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Open House Day

10 octobre 25 Science Festival: Free Open Day at the Cité des Télécoms!

To celebrate the Science Festival, the Cité des Télécoms will open its doors for free on Sunday, October 12, starting at 10 a.m.
A full day to explore the Radôme, dive into science, and enjoy exclusive activities!

Open Day? For whom? Why?

If you think that the big white dome hides a secret lab full of aliens,
If you believe the Radôme is used to watch the stars,
If you were seven years old the last time you visited,
Or if you’re simply a fan of heritage, science, and virtual reality…

👉 Then this day is made for you! Don’t hesitate — step through the doors of the Cité des Télécoms for an unforgettable day.
There’s something new to discover for everyone!

What’s on the program?

Immerse yourself in the fascinating world of the Radôme and be amazed by Eternal Notre-Dame (a 5-minute teaser), as well as our permanent and temporary exhibitions that will delight both young and old alike!

Practical Information

  • Date: October 12, 2025
  • Opening hours: 10 a.m. – 6 p.m.
  • Location: Cité des Télécoms, Pleumeur-Bodou
  • Admission: Free

But that’s not all…

The Cité des Télécoms joins the 2025 Trégor Science Festival!

The Science Village at Les Ursulines will open its doors from October 11 to 13, 2025, offering a fresh and engaging way to experience science!

On the program: demonstrations, experiments, workshops, and mini-conferences led by passionate researchers, PhD students, mediators, and volunteers.

This year’s theme will shine a spotlight on “Intelligence(s)”, explored from multiple perspectives — from technological innovation to scientific inquiry.


The Cité des Télécoms will present two original, interactive activities:

🔹 Soci[AI]ty Games: Learning about Artificial Intelligence through Play!
Artificial intelligence is now everywhere — in our phones, cars, and homes.
But how much do we really know about it? Through fun, hands-on games accessible to all, discover how AI works in a playful and educational way.

🔹 How Did My Phone Become Smart?
From a simple device for making calls to a multifunctional digital assistant, the smartphone has become an essential part of daily life.
This workshop invites visitors to trace its evolution, understand its uses, and explore the innovations that make it a true marvel of intelligence and technology.

👉 Join us at Les Ursulines in Lannion and at the Cité des Télécoms in Pleumeur-Bodou to share the excitement and curiosity of the 2025 Science Festival!

Practical Information:

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