The Bad Honnef Physics School “Searching for Quantum Gravity in the Sky” took place from 16th to 21st of February 2025 at the Physikzentrum Bad Honnef in Germany. The school was organised by the Deutsche Physikalische Gesellschaft (DPG) and the BridgeQG – COST Action CA23130 as its first Training School. It brought together around 80 participants.

Tomislav Terzić was one of the organisers of the school. Jelena Strišković was one of four lecturers, delivering a lecture series entitled “The search for time delays in GRB and AGN observations”. Filip Reščić participated as a student.

As part of the programme, participants visited the Effelsberg radio telescope.