The Astrophysical and Cosmological Relativity Department, led by Alessandra Buonanno, at the Max Planck Institute for Gravitational Physics (Albert Einstein Institute) in Potsdam, in collaboration with the Lichtenberg Group for History and Philosophy of Physics at the University of Bonn, led by Dennis Lehmkuhl, and the Department I and Max Planck Research Group “Final Theory Program” at the Max Planck Institute for History of Science, led by Jürgen Renn and Alexander Blum, respectively, is seeking a PhD student. The position will start in the fall of 2023, and it is fully supported by the 2021 Balzan Prize Funds for three years with the possibility of extension for a fourth year.