XVI Einstein Telescope Symposium, June 15-19 2026 in Aachen The upcoming Symposium will take place in Aachen from June 15th at noon until June 19th early afternoon. Hosted by the RWTH Aachen University, the event will be held at the central campus of the University in the heart of the city of Aachen. Registrants can also participate in every session online via a two-way zoom connection. Zoom links for each session can be found as an attachment to the session in the Indico timetable. Symposium Website

Supermassive Black Holes and Blue Notes, June 29 – Juli 3 2026 at Université de Montréal Held a week before the world-renowned Montreal International Jazz Festival, the conference aims to spotlight the significant progress made in the study of supermassive black holes, addressing open questions and exploring future prospects, particularly in the wake of the latest observations from JWST. Conference Website

From Black Holes to the Cosmos, August 24-28 at SISSA, Trieste This conference honors the scientific legacy of Matt Visser, whose pioneering work has profoundly influenced our understanding of general relativity, quantum field theory in curved spacetime, wormholes, energy conditions, analogue gravity, and beyond. Conference Website

16th International LISA Symposium, June 21-26, 2026, College Park, Maryland The 16th International LISA Symposium will highlight gravitational wave astrophysics, with a primary focus on the most up-to-date theory and analysis that will inform science to be performed by the Laser Interferometer Space Antenna. Conference Website

Summer school on Multimessenger Astrophysics at ICE in Barcelona, July 6-14 2026 9th edition of the ICE Summer School devoted to Multimessenger Astrophysics. This intensive programme is designed for advanced Master’s and PhD students, early-career researchers, andothers interested in the physics and observational techniques associated with multimessenger phenomena in the universe. School Website

Kavli-IAU Global Coordination Workshop (GCW) “International Coordination of the Time – Domain and Multi-Messenger Sky: New Opportunities and New Challenges”, Görlitz, Germany, 22-26 June 2026 The workshop, to be hosted at the new German Centre for Astrophysics (DZA) in June 2026, builds on the highly successful Kavli-IAU Global Coordination Workshop series. This will bring together approximately 50 astronomers and astrophysicists from around the world to discuss the global considerations of time-domain astronomy and multimessenger astrophysics. The drivers for these areas over the next decade will be large, international projects which require prompt and coordinated follow-up of new astronomical discoveries that may disappear in just a few days, or even sooner.…

Tales of Black Holes – International Doctoral Summer School on Advanced Black Hole Physics, June 29 – July 3, 2026, Granada Black holes are among the most fascinating objects in the universe. From cosmological, galactic and stellar scales, where black holes are integral pieces in the formation and evolution of different structures, to microscopic scales, where the study of the fabric of spacetime and black hole interiors are interrelated, black holes are ubiquitous in all research areas in which gravity is a prominent actor. A proper understanding of many aspects of modern physics requires being familiar with the concept of black hole; conversely, comprehending black holes in all their dimensions…

Causalworlds 2026: The 3rd International Conference on Quantum, Classical, and Relativistic Causality, June 22-26, 2026, Grenoble Understanding causality is foundational to science and has wide-ranging applications, yet there are several distinct notions of causation. Recently, there have been important developments on the role of causality in quantum physics, relativistic physics and their interplay. These have unearthed a plethora of deep and fascinating questions regarding the nature of causation in physical theories, emergence of space-time structure and how relativistic principles can shape the landscape of quantum information processing. Conference Website

The Extragalactic Transient Universe, July 6-10 2026 in Marseille The 2026 edition of the GECO-LAM conference will discuss the “Extragalactic Transient Universe” at a time of great research opportunities favored by new facilities such the SVOM and Einstein Probe (EP) high-energy missions or the Vera Rubin Observatory, among multiple others. The conference will focus on diverse topics ranging from observations, theory and modeling of the broad population of astronomical transients, through multi-messenger astronomy, to the instrumentation, techniques and data management that are needed to make transient research successful. Conference 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