Dr. Stephen Walker did his PhD at the University of Cambridge, and stayed there afterwards for his first postdoc. Walker then moved to be a NASA Postdoctoral Program (NPP) Fellow at NASA’s Goddard Space Flight Center. In the summer of 2019, he started as an Assistant Professor of Physics and Astronomy at the University of Alabama in Huntsville (UAH). Walker's research concentrates on all aspects of galaxy clusters (the largest collapsed structures in the universe), from the outskirts where they are continuing to form from the cosmic web, to gas sloshing produced by galaxy cluster mergers, to studying AGN feedback in cluster cores, focusing on their X-ray emission.
