Seminarium Teorii Względności i Grawitacji

: Gravitational Wave Astrophysics has already demonstrated its potential to explore the Universe. Just over a month ago, we celebrated the 10th anniversary of the discovery of gravitational waves from merging binary black holes! Since this discovery, we have already detected a few hundred gravitational waves, and we are still at the beginning of the journey of exploring the Universe with gravitational waves. While we regularly observe gravitational waves from compact binaries, we do not know what we may discover next. In my talk, I will give a brief overview of the current LIGO-Virgo-KAGRA fourth observing run, the discoveries, and other results. In the second part of my talk, I will summarize the first International Gravitational-Wave Network (organization that will replace soon LIGO-Virgo-KAGRA) SN2025gw Symposium [1] on gravitational waves from core-collapse supernovae. The meeting was hosted at the Faculty of Physics of the University of Warsaw and gathered over 80 experts from four continents.