Fourth MaNiTou Summer School on Gravitational Waves: A new window to the Universe, Jun 30 – July 5, 2025, Marseille The school is collaboratively organized by scientific communities involved in Gravitational Waves, from 3 French locations in Southern France, namely Marseille, Nice and Toulouse, thus the MaNiTou name for the school. Registration to the 4th edition of the MaNiTou Summer School on Gravitational Waves is now open for registration until April 6th, 2025. School Website

SIGRAV2025, September 8-12, Milano The conference will cover various aspects of Classical and Quantum Gravity, including tests of General Relativity, cosmology, gravity experiments, and gravitational waves from experimental, theoretical, and data-analysis perspectives. Conference Website

Black Holes & Cosmology, August 5-9, 2025 at University of Iceland The purpose of the conference Black Holes & Cosmology is to bring together world-renowned experts as well as junior researchers working on theoretical and observational aspects of black holes, particularly (but not limited to) their rôle in cosmology. Conference Website

Massive Black Holes at EAS 2025, Cork, June 23-24, 2025 Symposium on „Understanding and Interpreting Massive Black Holes in the Early Universe“ at EAS 2025 in Cork, organized by John Regan and Michael Tremmel. This symposium will take place across June 23rd and 24th (first two days or the symposium). Within this session there will be dedicated blocks focused on signatures of massive black hole binaries and the organizers encourage abstracts from the GW community in this direction. Within EAS there are of course multiple other sessions and symposia focused on Massive Black Holes (e.g.Modelling the First Billion Years) all of which may appeal those with research interested in MBH(B)s.…

Summer School, ISAPP GRAVITATIONAL WAVES: from theory to detection, Vienna, July 7-18 2025 Registration is now open for the ISAPP Summer School „GRAVITATIONAL WAVES: from theory to detection“, at the Erwin Schrödinger International Institute for Mathematics and Physics in Vienna. This astroparticle physics graduate school will cover important and timely topics connected to gravitational waves taught by internationally renowned experts. The primary focus will be on understanding how gravitational waves emerge from the theory of general relativity and how these can be detected using modern technologies. School Website

Dark Matter, Dark Energy and the Cosmological Tensions, June 23-27, 2025 at Lake Como The Schools are directed to PhD students and young Post-Docs in Physics, Astronomy and Mathematics who are interested in widening their knowledge in the fields of Physical Cosmology, Relativistic Astrophysics, General Relativity, Experimental Gravity and the Modern Quantum Theories of Gravitation. School Website

IAU Symposium 398: Compact Objects and Binaries in Dense Stellar Systems, June 16-20, 2025, Seoul This symposium is intended to discuss the astrophysical origin of gravitational waves and to establish connections between theoretical and observational data concerning dynamics, populations, binaries, multiples, and compact objects (including binaries containing them) in dense star clusters. Symposium Website

BritGrav25, April 28-29 2025, University of Birmingham The aim of BritGrav is to bring together early-career researchers working on all aspects of gravitational physics, including astrophysics, cosmology, general relativity, quantum gravity, gravitational-wave data analysis and instrumentation. Meeting Website

2nd European AI for Fundamental Physics Conference (EuCAIFCon 2025), June 15-20 2025, Cagliari This event aims to provide a platform for establishing new connections between AI activities across various branches of fundamental physics, by bringing together researchers that face similar challenges and/or use similar AI solutions. The conference will be organized “horizontally”: sessions are centered on specific AI methods and themes, while being cross-disciplinary regarding the scientific questions. Conference Website

The Dawn of Gravitational Wave Cosmology, April 28 – May 17 2025, Benasque Starting at its very origin, the universe is awash with mechanisms for gravitational wave (GW) production. The upcoming launch of an unprecedented array of gravitational wave missions, capable of testing more than 20 decades in frequencies, will usher in the era of gravitational wave cosmology and open up a new window on fundamental physics. It is thus more timely than ever for the physics community to identify priorities and coordinate the efforts in the field. Conference Website