After the Avalanche: Astrophysical Lessons from the fourth GW observing run, February 22-26, 2027 in Sexten How binary black holes and neutron stars form and merge is the central question in gravitational-wave astrophysics. A decade after the first direct detection of a binary black hole merger, it remains unclear which gravitational-wave events probe the evolution of isolated massive binary stars, the dynamics of dense environments like star clusters, and active galactic nuclei, or more exotic pathways. One of the main hurdles has been the low-number statistics that prevented statistically robust identification of sub-populations within the observed population of gravitational-waves. Workshop Website

QUEST 2026, September 23-25 in Pisa This is the first edition of QUEST: Quantum Gravity, Early Universe, Space-Time and Theoretical Frontiers. This conference will be held in Pisa from 23rd to 25th September 2026 and is entirely organized by PhD students from the University of Pisa who are interested in Gravity, Quantum Field Theories and Cosmology. Conference Website

New Horizons in Quantum Gravity, April 11-16 2027 at Ecole de Physique des Houches Taking place at the prestigious Ecole de Physique des Houches near Mont Blanc, on April 11-16, 2027, this doctoral school is dedicated to young researchers in classical and quantum gravity. It covers advanced topics in general relativity -covariant phase space, boundary symmetries, edge modes- and the recent developments they led to in quantum gravity, including algebra of observables, celestial holography and the blooming interface with quantum reference frames. Leading researchers at the forefront of quantum gravity and quantum information, will teach the fundamentals and discuss the current exciting lines of research. School Website

ACME workshop: The Transient Universe in the Rubin Era, November 2-6 2026, Orsay The workshop will focus on upcoming observations by the Rubin Observatory and their connection to the multi-wavelength and multi-messenger Universe. In this context, several observatories will be presented, and both current results and future prospects for observing a wide variety of transient sources will be discussed. The workshop will also feature presentations on tools and infrastructure that facilitate coordinated observations of the transient sky. Workshop Website

5th Einstein Telescope Annual Meeting, November 23-27 2026 in Prague The 5th Einstein Telescope Annual Meeting will take place in the beautiful historical city of Prague and it presents an important opportunity to discuss key aspects of the ET collaboration and design. Hosted by FZU – Institute of Physics of the Czech Academy of Sciences, the event will be held directly at FZU premises. Meeting Website

NEHOP 2027 – New Horizons on Primordial Black Hole Physics, June 14-18, 2027 at University of Patras This workshop event aims to nurture discussions and bring together experts on the broad topic of Primordial Black Holes (PBHs). From their phenomenological implications, their possible relationship to extant problems in the SM (dark matter, neutrino masses, baryon asymmetry, inflation), their theoretical underpinnings and origin, to the multi-messenger signals that are motivating state-of-the-art experimental developments. Workshop Website

24th IUVSTA Vacuum School Theory, Design, Instrumentation and Operation, October 18-23 2026, at KIT The 24th IUVSTA Vacuum School will bring together young scientists, engineers, doctoral students and industrial experts from universities, research institutes and industry for one week of intensive training in vacuum science and technology. Hosted at the Karlsruhe Institute of Technology (KIT), one of Europe’s leading research institutions, the school combines lectures, practical sessions and direct interaction with internationally recognized experts from academia and industry. The event also offers an excellent platform for industrial partners to present their technologies, products and expertise to a highly relevant international audience. It is supported by the International Union for Vacuum…

Materials for Advanced Detectors 2026 (MAD26) Workshop, October 12-14 2026 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

Cosmological Fundamental Observables and Novel Discoveries in Universe Evolution, January 25-29, 2027 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

Ripples Through Time: Past Triumphs, Mapping the Future, November 25-27, 2026 at UWA Perth Celebrating 50 years of gravitational wave research, science education, and future innovation A century ago gravitational wave detection was thought to be impossible. Fifty years ago it was the quest of a small bunch of intrepid physicists. They faced challenge after challenge, but their optimism persisted. They uncovered new physics, invented novel instruments and new techniques. New disciplines like quantum optomechanics, space laser communication, clock technology and airborne exploration technologies emerged from their efforts. Year after year they overcame setbacks, never imagining that it would take 40 years of struggle to achieve their quest. Symposium Website