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EREP 2025, Spanish and Portuguese Relativity Meeting, September 1-5, 2025, Alicante

The Spanish-Portuguese Relativity Meetings (EREPs) are a long-standing scientific tradition that began in 1977. Since then, they have served as a key forum for the Portuguese and Spanish communities working in General Relativity and Gravitation, promoting collaboration and the exchange of ideas across a broad range of topics. Organized annually by different research groups from both countries, EREPs have become the most prominent conference on gravitation and relativity in the Iberian Peninsula.

The 2025 edition (EREP 2025) will take place in Alicante, Spain, from September 1st to 5th, 2025. We warmly invite you to join us for a week of stimulating scientific discussions in a vibrant and sunny Mediterranean setting. As in previous editions, EREP 2025 will bring together researchers from across the Iberian Peninsula and beyond, offering a dynamic program in a friendly and collaborative atmosphere.

Meeting Website

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APPEC Tech Forum Vacuum & Cryogenics – Industry meets Academia, November 24-26, 2025, Maastricht

European physicists in astro-particle physics as well as in neighboring fields are planning the next generation of experiments to be built within the next decade. The success of the projects in direct dark matter detection, low energy neutrino physics, neutrino properties, gravitational wave detection as well as related accelerator-based experiments in particle and nuclear physics highly depends on challenging technologies in the domain of vacuum and cryogenics. The first event of this series, focusing on vacuum and cryogenics,  took place in Darmstadt/Germany in 2012. A brochure was published after the meeting, providing an overview of participating  experiments and companies.

For a thorough planning of all stakeholders it is important to carefully elaborate the timing of the projects and their needs as well as the market availability of key products. The APPEC Technology Forum is organized jointly with the international union of vacuum societies IUVSTA, national vacuum societies from the Netherlands and Germany, Maastricht University, NIKHEF and the Karlsruhe Institute of Technology (KIT) to identify synergies between projects from neighboring fields. It shall provide a discussion forum for companies, project scientist and funding agencies to define future ways of boosting cooperation to the benefit of all stakeholders.

Full registration is expected to be available im May 2025. However, you can already register your e-mail address to help us with planning and to receive updated information, as it becomes available. You can also indicate, if you are interested in presenting a poster for your experiment, or if you would like to present products and information about your company.

At the end of the meeting we offer a visit to ET-Pathfinder, a R&D facility for the development and testing of technologies for the next generation gravitational wave observatory, the Einstein Telescope.

Meeting Website

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APPEC Town Meeting 2025, September 23-24, Zaragoza, Spain

Town Meeting 2025: Preparation of the 2027-2036 Strategic Roadmap
As input for the preparation of the roadmap, a community survey took place beginning of this year. A briefing book including all Astroparticle Physics topics from the survey will be prepared by the APPEC Scientific Advisory Committee and released this summer, stay tuned!

During the APPEC Town Meeting, we will further discuss each of these topics with respect to the European and international context, and the new developments in Astroparticle Physics and in the neighbouring fields that will shape the strategic recommendations of the next roadmap.

This event includes plenary talks as well as round table discussions for each topic, to ensure a large participation of the community to shaping the future of Astroparticle Physics strategic orientations.

The discussions at this Town Meeting will serve as input for the European Astroparticle Physics Strategy 2027-2036.

Meeting Website

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14th Iberian Gravitational Waves Meeting, June 23-25 at CIEMAT, Madrid

The Iberian Gravitational Waves Meeting is an international conference organised annually since 2011 by different members of the Spanish Gravitational Waves Physics Network (REDONGRA). This year the meeting will be held from 23 to 25 June 2025 at CIEMAT (Madrid, Spain). It will be jointly organised by CIEMAT and IPARCOS (UCM).

The idea is to bring together researchers with an interest in the development of gravitational wave astronomy, including researchers from related fields of astrophysics, multi-messenger astronomy, cosmology, fundamental physics, instrumentation and data analysis, and, importantly, to foster collaboration between them.

A practical course on Explainable Artificial Intelligence (XAI) techniques, focusing on their application in gravitational wave data analysis and related scientific fields, will be held at CIEMAT on 26 June. For detailed information and registration, please visit this webpage.

We look forward to welcoming you to Madrid.

Conference Website

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33rd Texas Symposium on Relativistic Astrophysics,December 8-12 2025 in Tempe

The 33rd Texas Symposium on Relativistic Astrophysics will take place in the vibrant city of Tempe, AZ, from December 8 – 12, 2025. The event will be hosted at The Omni Hotel, very near Arizona State University, which offers state-of-the-art facilities to ensure a productive and enjoyable meeting.

We are thrilled to announce that John Mather, Jim Peebles, Adam Riess, George Smoot (TBC), and Frank Wilczek have already agreed to participate and attend the symposium.

Beyond the symposium, Tempe in December offers a perfect blend of outdoor adventures and festive activities, making it an ideal winter getaway. The mild temperatures invite visitors to explore the scenic beauty of Tempe Town Lake, hike the iconic Hayden Butte, or stroll through the Desert Botanical Garden. You can also experience the Tempe Fantasy of Lights Boat Parade, a dazzling display of holiday lights along the lake. The city hosts various seasonal events, including holiday markets, outdoor concerts, and ice skating rinks, offering attendees a chance to enjoy the warm desert climate while celebrating the holiday season.

The symposium will cover all major topics on high-energy and particle astrophysics, cosmology, and relativity. It will include morning plenary sessions and afternoon parallel sessions, which will function as mini-symposia in each sub-field. The plenary sessions will consist of ~45-minute review talks. The afternoon sessions will feature oral talks (about 15-30 minutes) and poster contributions. Registration will open in early May.

We look forward to welcoming hundreds of international astronomers and physicists to Arizona in December 2025!

Symposium Website

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10th Physics and Astrophysics at the eXtreme Workshop and 3rd Cosmic Explorer Symposium in Urbana, Illinois on June 30 – July 3, 2025

The 10th Physics and Astrophysics at the eXtreme (PAX) Workshop and the 3rd Cosmic Explorer Symposium are events sponsored by the Physics Department of the University of Illinois at Urbana-Champaign and taking place in Urbana, Illinois on June 30 – July 3, 2025 at the Beckman Institute Auditorium (Room 1025) and Room 1005.

The meeting aims to explore how gravitational and electromagnetic wave observations can help us understand extreme physics, including strong gravitational fields, dark matter, nuclear physics, cosmology, and multimessenger astrophysics. The Cosmic Explorer Symposium will bring together the community to discuss important aspects of the design and operations of the Cosmic Explorer gravitational-wave observatories, covering both observational and instrument science. Together, PAX-X and the Cosmic Explorer Symposium will explore the science opportunities that come with the next-generation gravitational-wave detectors.

Workshop Website

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APPEC Town Meeting 2025, September 23–24 at Universidad de Zaragoza

Town Meeting 2025: Preparation of the 2027-2036 Strategic Roadmap

As input for the preparation of the roadmap, a community survey took place beginning of this year. A briefing book including all Astroparticle Physics topics from the survey will be prepared by the APPEC Scientific Advisory Committee and released this summer, stay tuned!

During the APPEC Town Meeting, we will further discuss each of these topics with respect to the European and international context, and the new developments in Astroparticle Physics and in the neighbouring fields that will shape the strategic recommendations of the next roadmap.

This event includes plenary talks as well as round table discussions for each topic, to ensure a large participation of the community to shaping the future of Astroparticle Physics strategic orientations.

The discussions at this Town Meeting will serve as input for the European Astroparticle Physics Strategy 2027-2036.

Meeting Website

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35th Midwest Relativity Meeting and “EricFest”, October 31 – November 2, 2025 at University of Guelph

The 35th Midwest Relativity Meeting will be held at the University of Guelph on October 31 to November 2 (Friday to Sunday), 2025. The last day will be a scientific celebration of Eric Poisson's 60th birthday with invited speakers.

The Midwest Relativity Meetings bring together researchers from across the Midwest and beyond to discuss a broad range of topics in gravitational physics, including cosmology, gravitational waves, numerical relativity, and quantum gravity. The primary focus of this meeting is on graduate students and postdocs, all of whom are encouraged to give talks. The Blue Apple Award, sponsored by APS DGRAV, will be given for the best graduate student talk.

Meeting Website

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XV ET Symposium, May 26-30 2025 in Bologna

The XV ET Symposium will take place in Bologna from May 26th until May 30th. 
The ET Symposium kicks off on Monday 26th after lunchtime and will end on Friday 30th at lunchtime.

The Symposium will be organized in parallel sessions, hosting workshops managed by the ET boards (EIB, ISB, OSB, and SPB), and plenary sessions. The complete timetable is under construction and will soon be released.

A social event for early career scientists will be organized during the Symposium week. More information will be available soon.

The abstract submission for talks & posters is open now. The submission deadline for your contributions is the 31st of March.

The registration is now open.

The fee for in-person participants is €400 (VAT included) and includes the social dinner. The limit for in-person attendees is 380 people.

Participants can also attend the Symposium remotely via Zoom. While registration is required, there is no fee for online participation.

Symposium Website

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IAU Symposium 398: Compact Objects and Binaries in Dense Stellar Systems, June 16-20, 2025, Seoul

Cluster dynamics and the evolution of single and binary stars are closely intertwined, leading to different scenarios than those in the galactic field. Star clusters serve as dynamic factories for all these intriguing objects, and these topics are inherently interconnected. This symposium is intended to discuss the astrophysical origin of gravitational waves and to establish connections between theoretical and observational data concerning dynamics, populations, binaries, multiples, and compact objects (including binaries containing them) in dense star clusters. 2025 will be an excellent time to delve into the topic of star clusters and the roles of compact objects as it aligns with the release of significant results from the fourth observing run of LIGO/Virgo/KAGRA, which should provide crucial new constraints on the formation of gravitational wave sources. Additionally, numerous new discoveries of globular cluster pulsars are expected from large radio facilities such as MeerKAT, ASKAP, FAST, and others. New computer codes for dynamical simulations of dense star clusters are also emerging, and this symposium offers an excellent opportunity to discuss the latest results based on these codes.

Coordinating Divisions:

  • Division G Stars and Stellar Physics
  • Division D High Energy Phenomena and Fundamental Physics

Other Divisions:

  • Division H Interstellar Matter and Local Universe
  • Division J Galaxies and Cosmology

Scientific Organizing Committee

  • Hyung Mok Lee (Seoul National University) Chair
  • Rainer Spurzem (NAOC, Beijing; Heidelberg Univrsity) Co-Chair
  • Sourav Chatterjee (TIFR, Mumbai)
  • Michiko Fujii (University of Tokyo)
  • Di Li (Tsinghua University)
  • Antonino Milone (Padova University)
  • Fred Rasio (Northwestern University)
  • Anna Lisa Varri (Edinburgh University)

Local Organizing Committee

  • Chunglee Kim (Ewha Womans Univ.) Chair
  • Jongsuk Hong (Korea Astronomy and Space Science Institute)
  • Elahe Khalouei (Seoul National University)
  • Sungsoo S. Kim (Kyunghee University)
  • Joohee Lee (Seoul National University) Secretary

Conference Website