26.05.2025 With the Blue Book, members of the ET Collaboration present a comprehensive discussion of ET´s science objectives, providing state-of-the-art predictions for the capabilities of ET in both geometries currently under consideration, a single site triangular configuration or two L-shaped detectors.  The Blue Book is a milestone paper of the ET Collaboration and a major deliverable of the European ET-PP project. Nearly 200 key contributors have worked on this comprehensive ~600-page study, the result of dedicated efforts by the ET Collaboration´s Observational Science Board, coordinated by Marica Branchesi, Archisman Gosh and Michele Maggiore. The authors discuss  https://arxiv.org/abs/2503.12263

31.01.2025 The Science City Hamburg Bahrenfeld hosted the German ET Community, with more than 150 in-person participants underwriting the strong enthusiasm of the German community to work towards the realisation of the Einstein Telescope and the maximisation of its science. Highlights of the meeting included the keynote talk by Samaya Nissanke about Multi-Messenger Astrophysics today and in the ET era and talks about the status of ET and the ET Project by Harald Lück and Andreas Freise – and the social dinner on the Cap San Diego museum ship, which allowed the hosting city to showcase their strong maritime tradition. The German ET Community acknowledges the generous support by the…

12.11.2024 During the 3rd Einstein Telescope Annual Meeting, Lusatia in Saxony, Germany, was officially announced as a candidate site for the Einstein Telescope (ET). This marks a significant step forward for the region, highlighting its unique combination of scientific, technological, and geological assets that align with the ambitious goals of the ET project.

12.12.2024 The Leibniz-Institut für Kristallzüchtung (IKZ) in Berlin has joined the international Einstein Telescope (ET) collaboration as a research unit (RU-Berlin). The IKZ is a state-of-the-art competence center for crystalline materials. Its mission for ET is to provide crystalline silicon material and crystal growth know-how for the production of ET interferometer mirror and mirror suspensions. Silicon crystal growth using the Float-Zone (FZ) method is a long-standing expertise at the IKZ. The crucible-free FZ technique stands out for its ability to produce silicon crystals of ultra-high purity and crystalline perfection. Contactless induction heating of a molten zone held by surface tension forces allows growth without contamination. In the semiconductor industry, the…

15. 11. 2024 The Einstein Telescope Collaboration gathered for its annual meeting in Warsaw, Poland, from November 12 to 15, bringing together the scientific community from across Europe and the world. With recent advances in all areas, ET is making significant progress, bolstered by the energetic support of an engaged scientific community. “The collaborative spirit that drives ET’s scientific community has been a source of inspiration and has attracted growing support from astronomy, astrophysics and related fields”, says Michele Punturo, spokesperson of the Einstein Telescope Scientific Collaboration and research director at the INFN Perugia division, Italy. The project also enjoys robust backing from political and societal leaders across Europe, and…