12th Conference of the Polish Society on Relativity, August 2-7, 2026 The 12th Annual Conference of the Polish Society on Relativity (PoToR) serves as a key platform for fostering collaboration and the exchange of ideas among Polish and international scientists working in gravitational physics. Conference Website

1st BiCoQ Conference: from gravity to particles, June 15-19, 2026 in Milano The „BiCoQ Conference: from gravity to particles“ aims at bringing together a broad community of scientists working at the intersection of gravitational-wave astronomy, dark matter physics, and experimental cosmology. Conference Website

PhD International School on Technologies in Gravitational Waves Detection 2026, May 20-27, Sicily The scientific program includes a theoretical introduction to the fundamental principles of gravitational wave detection, along with lectures and practical sessions dedicated to the main features of ground-based and space-based interferometric detectors, paying particular attention to the following fields: GW theoretical aspects and principia, Future GW Observatories, Technologies aspects (interferometry, optics, controls, noise mitigation), Data Analysis. School Website

Einstein Telescope Vacuum and Cryogenics Industrial Workshop: opportunities and challenges, April 21-22 2026 at CERN The purpose of the workshop is to bring together the leading institutes which are designing the vacuum and cryogenic systems of the Einstein Telescope (the third generation gravitational wave detector which is currently being designed in Europe) and European Big Science industries specialised in vacuum and cryogenic technologies, to discuss the challenges and opportunities ahead. Workshop Website

2026 North American Einstein Toolkit Workshop and School, June 15-18 in Urbana The workshop will offer a mixture of talks and tutorials, with the tutorials including basic tutorials for new users and more advanced topics. The talks will, likewise, provide information for new users and will highlight exciting science cases and the latest developments in numerical relativity. On the final day, we will discuss future directions and development. Workshop Website

AI for Gravitational Waves at CERN, May 5–8, 2026 at CERN As gravitational-wave (GW) observatories enter an era of rapidly increasing detector sensitivity, bandwidth, and data rates—while the machine-learning (ML) ecosystem continues to mature—there is a timely opportunity to bring together the GW and AI communities in a focused setting at CERN. This workshop will convene researchers from the LIGO–Virgo–KAGRA (LVK) collaboration, the Einstein Telescope (ET), LISA, and the broader CERN AI community to (i) share recent advances, (ii) identify common technical challenges across experiments, and (iii) seed new cross-disciplinary collaborations—especially those relevant to next-generation detectors and real-time analysis. A dedicated focus will be placed on real-time data processing and…

POSYDON Summer School, August 24-27 2026 in Geneva Join us in Geneva for the 2026 POSYDON School and learn how to use POSYDON, a state-of-the-art binary population synthesis code now in its second version. This four-day workshop is designed to help participants incorporate POSYDON effectively into their own research. School Website

Science with LSST: From Transients to Cosmology – JHU May 11-15 We are pleased to announce the first LSST Discovery Alliance (DA) Regional Meeting “Science with LSST: From Transients to Cosmology”, that will be held at Johns Hopkins University (Homewood Campus, Baltimore MD) on May 11–15, 2026. This meeting is envisioned as a five-day, in-person event. Meeting Website

Iberian GW Meeting and International School on GWs 2026, Apr 26 – May 02, Benasque The Iberian Gravitational Wave Meetings (IGWM) are annual meetings organized by the REDONGRA community which have played a key role in establishing a Spanish GW community, and in integrating new groups. We organize these meetings with focus on specific joint R&D activities, in particular toward maximizing the Spanish role in the breakthrough discoveries expected in the next few years (the LIGO-Virgo-KAGRA detections and the new Pulsar Timing Array data), and in developing the future Einstein Telescope (ET) and LISA (Laser Interferometer Space Antenna) observatories. Meeting Website

APPEC Town Meeting Geneva 2026, September 2-3 As part of the roadmap development process, a community-wide survey was conducted in 2024 within the astroparticle physics community, followed more recently by a second survey across European astroparticle physics collaborations. Drawing on these valuable inputs, the APPEC Scientific Advisory Committee is preparing a draft Roadmap addressing all strategic themes identified in the surveys, with a preliminary version expected in summer 2026. Meeting Website