CosmoFONDUE 2027, January 25-29 at CERN The conference Cosmological Fundamental Observables and Novel Discoveries in Universe Evolution (CosmoFONDUE) aims at offering an occasion for scientists across all fields of cosmology to interact in an engaging and inclusive atmosphere, and to reflect on promising new research directions. A special focus is put on fostering exchange among junior and senior researchers. Conference Website

3rd GWCats Workshop, November 23–25 2026 in Toulouse We are pleased to announce the Third GWCats workshop which will take place in Toulouse, France, from 23 to 25 November 2026. More details and registration are available on the workshop Website. Registration is open until the 1st of November 2026 and limited to a maximum of 60 participants. Workshop Website

Gravity 2027 – RESCEU International Symposium on Quantum Aspects of Gravity, February 15–19, 2027, Tokyo The aim of the symposium is to foster comprehensive and in-depth discussions on the rapidly expanding frontiers of gravitational physics. The program will cover a wide spectrum of topics related to quantum aspects of gravity, including string/quantum gravity, quantum cosmology, quantum field theory in curved spacetime, inflationary quantum fluctuations, quantum effects on gravity experiments, and so on. Symposium Website

XIX Black Holes Workshop, December 17-18 2026, Lisbon From astrophysics to high-energy physics, from information theory to quantum gravity, black holes have acquired an ever increasing role in fundamental physics, and are now part of the terminology of many important branches of observational, theoretical and mathematical physics. Workshop Website

34th Texas Symposium on Relativistic Astrophysics, December 13-17 2027 in Melbourne Hosted at Pullman Melbourne Albert Park, the Symposium will bring together researchers from around the world to explore the latest developments in relativistic astrophysics, cosmology, gravitation and fundamental physics. The program will feature plenary presentations, parallel scientific sessions, contributed talks, poster presentations and opportunities for discussion, networking and collaboration. Symposium Website

Theory Meets Experiment 2026 – Gravitational Wave Physics: From Fundamental Principles to Next-Generation Observatories, November 9-20, 2026 at GGI-Florence We are excited to announce the upcoming school, Theory Meets Experiment 2026 – Gravitational Wave Physics: From Fundamental Principles to Next-Generation Observatories, taking place at the Galileo Galilei Institute in Florence from the 9th of November until the 20th of November 2026. Application Deadline: 29 September 2026 School Website

Inside and Out – Black Holes III, August 23-27, 2027 at Sapienza University of Rome Black Holes III will gather experts working on the many complementary aspects of classical and quantum black holes: their exterior geometry, their internal structure, their perturbations and stability, their formation and mergers, their observational signatures, and their possible extensions beyond General Relativity. Meeting Website

Materials for Advanced Detectors 2026 (MAD26)Workshop, October 12-14 2026, Villeurbanne, France MAD Workshop is an excellent opportunity to connect with collegues involved in the development of advanced materials for gravitational wave detectors as well as with researchers from crystal growth community and industry who share a deep interest in the topic. Together we will discuss recent achievements and challenges in material research and outline prospects for future cooperation. We are confident that face-to-face workshops with a lot of space for personal interaction and individual meetings will contribute to achieving our common goals. Workshop Website

Multi-messenger lensing at Lorentz Center, October 19-23, 2026 This workshop aims to catalyze the emerging field of multi-messenger gravitational lensing—a transformative approach to observing the distant Universe through the combined signals of gravitational waves, neutrinos, and electromagnetic messengers from gravitationally lensed transient events. The scientific motivation lies in the potential for such lensing events to unlock new insights into cataclysmic cosmic phenomena, from kilonovae, supernovae and gamma-ray bursts to binary neutron star mergers, offering a deeper understanding of astrophysics, cosmology, and fundamental physics. Through highly interactive sessions, the workshop will identify research priorities, foster coordination among facilities, and establish a roadmap for future work to enable the first detection of…

RESCEU-NBIA workshop on gravitational-wave sources 2026, November 25 – December 4, in Tokyo The workshop will focus on compact object binaries ranging from stellar mass objects to supermassive black holes. The workshop aims to discuss our current understanding of gravitational-wave sources based on the previous gravitational-wave and electromagnetic observations and what we will be able to learn from future observations. Workshop Website