Hannah Rana is a Clay Fellow at the Center for Astrophysics | Harvard & Smithsonian and the Black Hole Initiative at Harvard University. She works on the Black Hole Explorer (BHEX) space mission concept and is the Cryogenics Co-Lead for the BHEX instrument. Prior to this, Hannah was a Schmidt Science Fellow, also at Harvard, and has held previous appointments at the NASA Jet Propulsion Laboratory, the California Institute of Technology, the European Space Agency, and CERN. She completed her D.Phil. at the University of Oxford. Over the years, her research has focused on astrophysics instrumentation, black hole science, thermodynamics, and mathematical modelling.