Fête de la Science 2025: themed games and guided tours at the Parc aux étoiles (78)

There's good news for all you young and old scientists out there, as the Fête de la Science returns to Paris and the rest of the Île-de-France region. To mark the occasion, the Parc aux étoiles, located in the Yvelines region, is offering free workshops and tours from October 4 to 12, 2025.

It's an annual event that science fans and enthusiasts wouldn't miss for the world. The Fête de la Science celebrates its 34th edition from October 3 to 13, 2025. Every year since 1991, the Fête de la Science has provided an opportunity to raise public awareness of science, encourage the sharing of knowledge between researchers and the general public, and showcase the work of the scientific community. How do we do it? By offering a series of free events (visits, workshops, meetings...) in schools and universities, museums and many other venues.

Fête de la Science 2025 in Paris and Ile-de-France: the program of free events
The Fête de la Science is back from October 3 to 13, 2025 for its 34th edition! The idea? A week dedicated to scientific culture, with numerous free events all over France. Experiments, shows, open houses, visits and a host of workshops, open to all and adapted to children, await you in the four corners of Paris and the Île-de-France region! [Read more]

Fête de la Science 2025: the program at schools and universities in Paris and the Île-de-France region
Do you want to understand all there is to know about science, or inspire your children to take up science? Let's make the most of the Fête de la Science, which returns for a new edition from October 3 to 13, 2025 in numerous cultural establishments, but also in major schools and universities! We take a look at the educational venues that await you. [Read more]

In Paris and the Île-de-France region, numerous events are scheduled for this autumn. This is particularly the case in Yvelines. Coordination of the Fête de la Science for the 78 département has been entrusted to Parc Aux Étoiles, CCSTI des Yvelines, for 2019. This year, the Parc Aux Étoiles is continuing this departmental coordination and looks forward to seeing you in October 2025 to dive into all aspects of the scientific universe.

Located on the Hautil hill in Triel-sur-Seine, the Parc aux Etoiles is the second-highest site in the Île-de-France region, making it easy to observe the sky. And last but not least, this is where France's largest astronomical telescope (225 mm) has been installed. The telescope is open to the public.