Applications are open for Postdoctoral Research Fellows in the fields of Astronomy and Physics in the Black Hole Initiative (BHI) at Harvard University. BHI is an independent, interdisciplinary center within the Faculty of Arts & Sciences at Harvard University. Involving a collaboration between Principal Investigators (PIs) from the Astronomy, Physics, Mathematics, History of Science and Philosophy departments, the BHI is the first center worldwide to focus on the study of black holes. Current senior members of the BHI include Peter Galison (BHI Director, History and Philosophy of Science), Sheperd Doeleman (Astronomy), Netta Engelhardt (Physics), Abraham Loeb (Astronomy), Ramesh Narayan (Astronomy), Priya Natarajan (Astronomy), and Andy Strominger (Physics). Successf