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

Gravi-Gamma-Nu Workshop, September 30 – October 2 2026 in Milano Sixth edition of the Gravi-Gamma-Nu workshop, scheduled for September 30 to October 2, 2026, at Milano Bicocca University in the Lombardy region of Italy. This year’s workshop will be dedicated to covering the latest observational results from the new all sky surveys in the multimessenger context. The format of the workshop consists of invited and contributed talks. Workshop Website

From Quantum Gravity to Cosmology, September 28 – October 2, 2026 in Kashiwa This workshop will bring together researchers in quantum gravity and cosmology to discuss major open questions at the interface between the two fields. Although the CDM model has been remarkably successful, increasingly precise cosmological observations have also brought a number of challenges and tensions into sharper focus. At the same time, substantial progress in quantum gravity, particularly in its applications to cosmology, has opened new possibilities for investigating the quantum origin of the universe and for seeking a more fundamental understanding of both the successes and the possible limitations of the standard cosmological model. Workshop Website

10th Roma International Conference on Astroparticle Physics, September 7-11 2026 The 10th edition of the Conference will be hosted by the Sapienza University of Roma. The aim of the Conference will be to present and discuss some of the most relevant theoretical and experimental results in the field of high energy cosmic radiations (gamma, neutrinos, charged cosmic rays). Special attention will be paid to the multi-messenger search for high energy cosmic rays sources, including gravitational wave searches. Conference 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

AG splinter session on Relativistic Astrophysics, September 11 2026, Garching, Germany This session covers the observational and theoretical aspects of the physics in strong gravitational fields and of the emergence of high energy phenomena. Strong gravity and relativity will be important for the formation and nature of white dwarfs, Neutron Stars and Black Holes. Physical phenomena in the vicinity of compact objects are lensing and shadows, the motion of stars in strong gravitational fields, gravitational waves, accretion disks, jets, and Gamma-Ray-Bursts. Also the aspects of relativity in cosmology and dark matter search will be part of this session. Session 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