Quantum Gravity and Cosmology 2026, February 9-13, Bologna The goal of the workshop is to bring together the experts working on different UV complete approaches to quantum gravity, from string theory to various perturbative and non-perturbative approaches. Given the promising opportunity to probe quantum gravity effects in the very early Universe with future CMB and gravitational wave experiments, we expect the in-depth discussions on predictions and self-consistency of low- energy effective theories on top of cosmological backgrounds. Workshop Website

Dark Matter and Stars: Multi-Messenger Probes of Dark Matter and Modified Gravity, July 13-15 2026, Southampton The International Conference „Dark Matter and Stars: Multi-Messenger Probes of Dark Matter and Modified Gravity“ aims to bring together scientists working across the different research fields of astrophysics, cosmology, and modified gravity. We want to look at the dark matter problem from different perspectives, considering it to be of particle nature, as well as modification of gravity. This meeting is intended to initiate cross-field discussions of dark matter searches, their current status, and future prospects. Conference Website

CosPA2026 and ACGRG13, July 6-10 2026, Christchurch, New Zealand The International Symposium on Cosmology and Particle Astrophysics (CosPA2026) and the 13th Australasian Conference on General Relativity and Gravitation (ACGRG13) will be held jointly, bringing together two complementary scientific communities. CosPA2026 is part of an annual conference series organized in the Asia-Pacific region under the Asia Pacific Organization of Cosmology and Particle Astrophysics (APCosPA), while ACGRG13, convened by the Australasian Society for General Relativity and Gravitation, is a biennial forum for regional researchers in all areas gravitational physics from mathematical relativity to experimental gravitational wave detection. Conference Website

GW:UK @ Nottingham, January 15-16 2026 GW:UK@Nottingham is the first meeting of the GW:UK initiative (website). It will bring together researchers from across the UK involved in gravitational wave science to celebrate 10 years of gravitational wave discoveries (day 1) and to engage in community-building activities (day 2). Conference Website

42nd Pacific Coast Gravity Meeting – February 27-28, 2026 at UC Riverside In the tradition of the Pacific Coast Gravity Meetings, students and postdocs are strongly encouraged to participate, and all areas of gravitational physics—classical and quantum, theory and experiment—are welcome. We would like this meeting to serve as a communication medium among all branches of gravitational physics. Because this is a regional APS meeting, many participants will be from the Western U.S., but all are welcome. Conference Website

Symposium & Memorial for Professor Rainer Weiss, Fri-Sat February 27–28, 2026 The MIT Department of Physics and Kavli Institute for Astrophysics and Space Research would like to share with you plans for a symposium and memorial service honoring Professor Rainer Weiss, Nobel Laureate in Physics (2017) and longtime member of our faculty, whose visionary work made the discovery of gravitational waves possible. Symopsium Announcement

Gravitational Waves and Detection Technologies – PAS Rome Meeting 2026, March 16-17 Gravitational Waves and Detection Technologies – PAS Rome meeting 2026, jointly organized by the Polish Academy of Sciences, the University of Perugia and INFN Perugia, will take place in Rome from 16 March to 17 March 2026. This event aims to provide a platform for sharing recent advancements in the rapidly evolving field of gravitational-wave science, with a particular focus on detector science and experimental technologies. Meeting Website

Massive Black Hole Spin Workshop, April 21-24 2026, Edinburgh Astrophysical black holes can be entirely described by just two properties: their mass and their spin. While masses of black holes have been extensively studied, black hole spin remains poorly understood. This is because spin is both much more difficult to observe and more complex to model. Nevertheless, spin is no less integral to the evolution of massive black holes over time, and the role they play in shaping their host galaxies. Workshop Website

SIGRAV International School 2026: Neutron Stars: Modelling and Detection, February 16-20 in Vietri sul Mare This edition of the Italian Society of General Relativity and Gravitation (SIGRAV) International School is dedicated to the study of neutron stars as outstanding sources of gravitational and electromagnetic waves in the strong-field regime. The program is structured to promote scholarly interaction and collaboration, offering participants the opportunity to engage with leading experts in the field. Through a series of advanced lectures and discussions, the School aims to provide a comprehensive understanding of current developments in gravitational research and to equip attendees with the knowledge and tools necessary to advance their own scientific work in…

Listening to the Cosmos: New Frontiers in Gravitational Wave Physics, Aug 24 – Sep 26, 2026, Firenze The first detection of gravitational waves from the Ligo-Virgo-Kagra collaboration and the recent results of several pulsar timing arrays have opened the exploration of the gravitational wave Universe. Over the next decade, several other ground and space-based experiments will join this exploration and allow us to access a broad band of the gravitational wave spectrum. This new exploration comes with a series of challenges that can only be overcome through close collaboration between experimentalists and theorists. This workshop will bring together experts working on the experiments enabling this exploration, as well as particle…