There were three scientific contributions during the group’s meeting on Thursday 6.8.22. Dr. Petra Suková from ASU talked about “Observational traces of supermassive black hole companions“, Dr. Tayebeh Tahamtan from UTF talked about ” Slowly rotating black holes in nonlinear electrodynamics” and Dr. Ippocratis Saltas from FZU presented two publications of the Cosmology WG of the LISA consortium (arxiv: 2204.05434 and arxiv:2203.00566).