| 13.04.2026 | |
| 20.04.2026 | Krzysztof Hryniewicz, National Centre For Nuclear Research (NCBJ), Warsaw, Poland tba |
| 27.04.2026 | — tentatively blocked for institute meeting — |
| 04.05.2026 | |
| 11.05.2026 | |
| 18.05.2026 | |
| 01.06.2026 | Simone Scaringi, Durham University, Durham, UK tba |
| 08.06.2026 | |
| 15.06.2026 | |
| 22.06.2026 | Jochen Greiner, Max-Planck-Institut für extraterrestrische Physik (MPE), Garching, Germany Gamma-Ray Bursts – an engima and a tool |
| 29.06.2026 | Sebastien Guillot, Institut de Recherche en Astrophysique et Planetologie / Observatoire Midi-Pyrénées (IRAP / OMP), University of Toulouse, France tba |
| 06.07.2026 | |
| 13.07.2026 | |
20.07.2026 | |
| Preview for the next semester |