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Carré Sciences : Modane Underground Laboratory

Modane Open
The little secrets of the Universe - Riccio Charlotte
  • Exterior view of the Carré des sciences - Riccio Charlotte
  • modane-musee-carre-sciences-laboratory-underground-tunnel-frejus - Riccio Charlotte

A museographic space that presents in a playful and interactive way the experiments of the Modane Underground Laboratory.


"The little secrets of the universe", permanent exhibition in a space of 120m ² arranged: the public discovers a sequence of topics which go from the evolution of physics to that of our universe until the current experiments and the future projects.

Family visits are possible (more understandable for children over 10 years old).

The Modane Underground Laboratory was dug in the early 1980s in the middle of the Fréjus road tunnel. It is the deepest scientific site in Europe, and was designed for fundamental research. It takes advantage of the 1700 m of rock that separate it from the summits to shelter it from cosmic rays. Its location allows to measure specific phenomena: (stability of the proton, neutrino, detection of the hidden matter of the universe ... and very low radioactivity.
Used by an international community of 200 scientists, the LSM allows to treat subjects such as astrophysics, to better define the origin of the universe, earth sciences, gamma spectrometry and dating techniques as well as biology.


  • Animals accepted


  • Highway exit at less than 5 km
  • On the outskirts of the city
  • G.R. Itinerary within 1 km


Free of charge.

Opening period

From 03/01 to 17/12/2022 from 14h to 17h.
Closed Saturday and Sunday.

From 02/01 to 31/12/2023 from 14h to 17h.
Closed Saturday and Sunday.

Spoken languages

  • English
  • French
  • Italian



Animals accepted : Yes

Carré Sciences : Modane Underground Laboratory
1125 route de Bardonnèche 73500 Modane