For this 14th conference in the series, members of Euclid-France are invited to Strasbourg from 17 to 19 November 2025, where they will be welcomed by the Strasbourg Astronomical Observatory, the International Space University (ISU), and the Planetarium of the Jardin des Sciences at the University of Strasbourg. The meeting and the three social activities are completely free of charge for registered participants ; the LOC validates registrations.

Euclid is a major mission of the European Space Agency's (ESA) Cosmic Vision programme. This internationally renowned cosmology mission aims to understand the source of the acceleration of the expansion of the universe, the nature of dark energy and gravity by observing several billion galaxies, tracing the history of the universe over more than 10 billion years. The data is also used for a multitude of research projects focusing on the more local universe.

The scale of this space mission requires an organisation – the Euclid Consortium – which brings together around 2,000 researchers, engineers and technicians from across Europe, with participation from the USA, Canada and Japan. France is a major participant in this project and, through the CNES, has provided laboratories with the resources to contribute to this mission. With around 250 Euclid members active in France – including the mission's scientific director (Yannick Mellier, IAP) and his deputy (Francis Bernardeau, IPhT Saclay) – CNES, CNRS, CEA and partner universities are providing significant human resources and technical infrastructure. 

LOC : Matthieu Béthermin, ObAS ; Mathilde Dembront, ObAS ; Pierre-Alain Duc, ObAS ; Bertrand Goldman, ISU (co-chair) ; Baptiste Jego, ObAS ; Ariane Lançon, ObAS (co-chair), Olivier Marchal, ObAS ; Tancrède Ménard, IAP ; Yaël Moussouni, ObAS ; Samuel Rusterucci, ObAS ; Teymoor Saifollahi, ObAS/CNES.  

SOC : Francis Bernardeau, IPhT ; Sylvain de la Torre, LAM ; Pierre-Alain Duc, ObAS ; Stéphanie Escoffier, CPPM ; Bertrand Goldman, ISU ; Katarina Kraljic, ObAS ; Sophie Maurogordato, OCA ; Jean-Baptiste Melin, CEA ; Yannick Mellier, IAP ; Natalia Porqueres, CEA ; Marine Ruffenach, CNES ; Marc Sauvage, AIM ; Elsa Texeira, LUPM

The Astronomical Observatory(Observatoire astronomique de Strasbourg, ObAS), is a department of Université de Strasbourg (Unistra) and is also a research unit affiliated with both the CNRS and Unistra. It is located on the central campus, in the historic Neustadt district dating from the late 19th century. Its research teams are involved in a variety of projects, particularly related to stellar physics, interstellar environments, galaxy evolution, gravitation, cosmology, high energies, and data mining. It hosts the Strasbourg Astronomical Data Centre (CDS).

The International Space University is located on the Illkirch campus (accessible by tram from the station and from the Observatory). It has been offering interdisciplinary training in the space sector since 1988. As an Alsatian-Mosellan non-profit association, ISU offers academic courses and long-term and short-term professional training programs with a unique teaching approach, bringing together students and teachers from all interdisciplinary, intercultural, and international backgrounds.

The role of the Jardin des Sciences of Strasbourg University is to bring science closer to society. To this end, it manages university museums, a botanical garden, a planetarium, and numerous conferences. Since 2023, the Science Garden Planetarium has had its own premises, including a magnificent hemispherical dome, near the Observatory on the central campus. It welcomes schools and the public for shows and various activities related to the research carried out by Unistra teams. In particular, it projects images of the sky or simulations produced by the astrophysics community in ‘full dome’ format.

The Ourisson lecture theatre of Strasbourg University is located in the main building of the Faculty of chemistry on the central campus [Photo].

Please consult the Practical Information pages to find out what sites are relevant on any given day of the meeting, and to locate them geographically.

Acknowledgements : the organizers thank the technical, administrative, computer engineering and logistics teams of the sites above for their support. 

 Strasbourg is a city on a human scale, rich in a unique multicultural history that is reflected in its architecture, crossed by the river Ill and several canals, and boasting a charming and bustling island as the city's centre. Its pink sandstone cathedral points skywards with a single, slender spire that dominates the city and much of the surrounding region. You can get around easily on foot, by bicycle, tram or bus.

We recommend that you choose a hotel in or near the very center (rather than half way between the city center and the ISU buildings located in near Illkirch on the southern side of Strasbourg).