4th Einstein Telescope Annual Meeting, November 11-14, 2025 in Opatija, Croatia The 4th Einstein Telescope Annual Meeting presents an opportunity to discuss key aspects of the ET collaboration and design. Hosted by the University of Rijeka, the event will be held at the Drago Gervais multifunctional hall, located in the heart of the nearby Opatija. The meeting is open to all members of the ET collaboration, beginning on the morning of Tuesday, November 11, and concluding on Friday, November 14 at lunchtime. Participants can join all sessions online via Zoom. Zoom links will be provided as attachments in the session timetable. Meeting Website

@FlipPhysics, May 26-29 2026 at Universidad de Valencia The 3rd edition of the @FlipPhysics workshop seeks to bring together the community of physicist working in the areas of Nuclear, Particle Physics and its Applications, especially women, and also (under)-graduate, PhD students, and young researchers, who have the opportunity to be introduced to several scientific topics through (mostly) women who have been successful in the field. Workshop Website

New Windows on Fundamental Physics: from tabletop devices to large scale detectors, January 19–23 2026, University of Manchester The main workshop will consist of invited and contributed talks, as well as a poster session including a prize for best poster. The one-day meeting will comprise mainly contributed talks. We strongly encourage contributions for both meetings and welcome submissions from underrepresented groups. The focus of the 4-day meeting will be on tabletop detectors and quantum technologies for fundamental physics (QTFP), including Precision metrology & quantum sensing, Cold atoms and molecules, Quantum analogues, Atom interferometry, 5th force tests, Axion/WIMP dark matter & dark energy, Neutrinos, Gravitational waves, Tabletop detectors . Conference Website

Quantum100 ⊗ AI Workshop, November 12-14 2025, Münster The centennial year of the discovery of quantum mechanics is the best occasion to foresee the future of physics. Eventually this opportunity overlaps with the revolutionary development of AI, and without AI we cannot talk about the future. Here we hold a research workshop “Quantum100 ⊗ AI” in which physicists using AI or trying to unify AI with physics gather, to discuss the future of physics. The workshop consists of plenary invited talks in various physics fields centered in high energy theory, together with a poster session, and a panel discussion for the discussion of the future. Workshop Website

3rd International Online Conference on Universe (IOCU 2026), March 4-6 2026 The 3rd International Online Conference on Universe (IOCU 2026), organized by the MDPI journal Universe (ISSN: 2218-1997, Impact Factor 2.6), will bring together leading experts to share and discuss the latest research across fields such as gravitation and cosmology, field theory, high energy physics, space and planetary sciences, galaxies, stellar physics, quantum mechanics, and many other astrophysics-related topics. Conference Website

Belgian-Dutch Gravitational Wave Meeting, October 27-28 at Radboud University The 13th edition of the Belgian-Dutch Gravitational Wave Meeting will be hosted by the Radboud University in Nijmegen on Oct 27 – 28 2025. This annual meeting aims to bring together physicists and astronomers interested in all aspects of gravitational-wave science, to inform each other of recent developments, discuss (strategic) topics and informally meet each other. Meeting Website

JGRG 34 – Workshop on General Relativity and Gravitation, January 19-23 2026 at Kyoto University JGRG is the community of researchers in Japan, working on General relativity and Gravitation. JGRG has hosted an annual workshop series under the same title since 1991. The main purpose of the workshop is to provide a venue for exchanging ideas to pursue future trends of research. The workshop covers a wide range of topics related to general relativity and gravitation. Workshop Website

XVIII Black Holes Workshop, December 18-19 2025 in Lisbon The eighteenth edition of the Black Holes Workshop will be held at the Instituto Superior Técnico, Lisbon, in December 18 and 19, 2025 and celebrate the 10 years of the first gravitational-wave detection by the LIGO detectors. The venue will be on campus, at the Anfiteatro Abreu Faro. Workshop Website

3rd Bangkok Workshop on Gravity & Cosmology, February 2-6, 2026 at Chulalongkorn University, Thailand The workshop will cover a broad range of issues in gravity and theoretical aspects of cosmology. Some concrete examples of relevant topics are gravitational instabilities and collapse problems, singularity resolution, canonical approaches to gravity quantization and quantum cosmology, statistics of fluctuations in cosmological spacetimes, primordial black holes, cosmological dynamics of fundamental constants, etc. The talks are expected to be informal and interactive, with a substantial pedagogical component. We strongly encourage blackboard presentations. Workshop Website

BIFROST – Black hole Insights: navigating the FROntiers of SpaceTime, October 20-22, 2025, Odense „Bifrost: Black Hole Insights – navigating the FROntiers of SpaceTime“ is a dedicated workshop aimed at gathering leading experts from observational astronomy to theoretical physics. Together, participants will explore novel ideas that will help bridge classical and quantum gravity. Workshop Website