1 - Giant Planets with the James Webb Space Telescope, Thierry Fouchet, Emmanuel Lellouch, Dominique Bockelée-Morvan (LESIA), Imke de Pater (UC Berkeley), Leigh Fletcher (Univ. of Leicester, UK), 06 — 10 January 2025, Observatoire de Paris, site de Meudon

2 - Professional integration training in the academic world, Léa Griton (LESIA), 15 — 17 January 2025, Observatoire de Paris - site de Meudon

3 - ARMS 3rd users meeting, Sophie Masson (LPP), 07 — 11 April 2025, Sorbonne Université

4 - PLATO HOW#5 Selection and Validation of stellar data products, Rhita-Maria Ouazzani (LIRA), 19 — 23 May 2025, Observatoire - Site de Meudon

5 - The whirlwind of life: Roddier day, Vincent Coudé Du Foresto (LIRA), 05 — 06 June 2025, Observatoire - Site de Paris

6 - Colloquium celebrating the 400th anniversary of the birth of Jean-Dominique Cassini (June 8, 1625-September 14, 1712), Matthieu Husson (LTE), 10 — 11 June 2025, Observatoire - Site de Paris

7 - Planetary, Solar and Heliospheric Radio Emissions X, Laurent Lamy (LIRA, LAM), 11 — 13 June 2025, Université Aix-Marseille, Palais du Pharo Marseille

8 - Physics of the broad line regions in active galactic nuclei, Francoise Combes (LUX), 15 June — 14 July 2025, Observatoire de Paris, Site de Paris

9 - Formation of the ED ‘Heliosphere as a laboratory for astrophysical plasmas’., Olga Alexandrova (LIRA), 23 — 27 June 2025, Observatoire - Site de Meudon

10 - Réunion du consortium DAOISM, Maryvonne Gerin (LUX), 23 — 27 June 2025, Observatoire de Paris, Site de Meudon

11 - Brightest Cluster Galaxies seen by the JWST, Philippe Salomé, 08 — 10 July 2025, Observatoire - site de Paris

12 - Workshop in Celestial Mechanics in honor of Alain Albouy, Jacques FEJOZ (LTE), 09 — 12 July 2025, Observatoire de Paris, Site de Paris

13 - Workshop in Celestial Mechanics in honor of Alain Albouy, 09 — 12 July 2025

14 - Advanced Summer School on Galaxy Formation and Evolution, Andrea Cattaneo (LUX, Observatoire de Paris), 16 — 22 July 2025, Island of Spetses, Greece, AKSS Conference Centre,

15 - Celebrating the 20 years of the Huygens landing on Titan and the success of the Cassini-Huygens mission, Athena COUSTENIS (LIRA), 16 — 18 September 2025

16 - Evry Schatzman School 2025: stellar physics in the PLATO era, Rhita-Maria Ouazzani (LIRA), 22 — 26 September 2025, Centre du CNRS d’Aussois

17 - ALMA, JWST, Gaia - The Milky Way connection, Paola Di Matteo, 01 — 03 October 2025, Site de Paris

18 - Workshop Plasma Observatory Contribution française, Léa Griton (LIRA), 02 — 03 October 2025, Observatoire de Paris, Site de Meudon

19 - CIANNA user workshop, David Cornu, 15 — 16 October 2025, Observatoire - Site de Paris

20 - Cherenkov Astronomy Data School 2025, Pierre Cristofari (LUX), 03 — 07 November 2025, Observatoire - Site de Paris

21 - Oort-MW : On the Formation and Evolution of the Outermost Solar System, HESTROFFER Daniel, 03 — 05 November 2025, Observatoire - Site de Paris

22 - SPONGE first annual meeting, Piercarlo Bonifacio, 24 — 26 November 2025, Observatoire - Site de Meudon - Salles du Centre Janssen