The Event Horizon Telescope Collaboration (EHTC) has unveiled the first ever horizon-scale images of supermassive black holes: M87* in the nearby galaxy M87, and Sgr A* at the center of the Milky Way. These images provided remarkable opportunities to test General Relativity in the strong-field regime and kicked off a brand new research direction in black hole astrophysics at event horizon scales. These results were accompanied by studies on multiple active galactic nuclei (AGNs) that advanced our understanding of the innermost regions of their relativistic jets and accretion flows.

The EHTC is now releasing new exciting results about M87*, Sgr A*, and several AGN sources from observing campaigns beyond 2017. With new telescopes, higher data rates, and improved analysis algorithms, including dynamical imaging, scattering mitigation, and GRMHD-informed inference, these observations reveal finer details of horizon-scale emission structures and the dynamics of relativistic accretion and jets. These advances are enabling "movies" of black hole accretion and opening previously inaccessible windows into strong-gravity environments.

This special sessions will showcase the latest EHT and mm-VLBI science results. It will also present transformative methodological developments and introduce future science plans and technical upgrades, space VLBI missions, and multi-messenger synergies, that will define the path of event horizon science in the next decade.

Programme

• M87*: From Static Images to Dynamic Evolution
• Sgr A*: From Horizon to Multi-Wavelength Scales
• AGN Science with EHT: From Accretion to Jet Launching
• Connecting Scales: Multi-Wavelength and Time-Domain Studies
• Future of EHT: Instrumentation & Observing Capabilities
• Theoretical Horizons: Future Science with EHT
• Space VLBI: Mission Concepts & Prospects
• Multi-Messenger Astrophysics Meet Event Horizons

Invited speakers

• Kazu Akiyama (Heriot-Watt University)
• Gabriele Bruni (IAPS, INAF)
• Andrew Chael (Princeton University)
• Nicholas Conroy (UIUC)
• Ciriaco Goddi (University of Cagliari, INAF)
• Roman Gold (IWR)
• José L. Gómez (IAA-CSIC)
• Iván Martí-Vidal (University of Valencia)
• Lia Medeiros (IAS)
• Kotaro Moriyama (IAA-CSIC)
• Dhanya Nair (UdeC)
• Feryal Özel (Georgia Tech)
• Sasha Plavin (CfA)
• Giacomo Principe (University of Trieste, INAF)
• Freek Roelofs (RU)
• Paul Tiede (CfA)
• Efthalia (Thalia) Traianou (IWR)
• Sascha Trippe (SNU)
• Sebastiano von Fellenberg (CITA)
• Guang-Yao Zhao (MPIfR)

Scientific organisers

K. Akiyama (HWU), M. de Laurentis (INFN, co-chair), R. Gold (IWR), D. Haggard (McGill), S. Issaoun (CfA), L. Mathews (MIT), M. Moscibrodzka (RU), F. Özel (Georgia Tech), G. Paraschos (MPIfR), H.-Y. Pu (NTNU), A. Tetarengo (U. Lethbridge), E. Traianou (IWR, co-chair), H. van Langevelde (JIVE)

Contact

EHT Collaboration Speakers Bureau: eht-sb @ googlegroups.com