Alex Shi is a PhD student at the School of Aeronautics and Astronautics at Purdue University. Her research involves developing methods and tools for addressing challenges in space sustainability, with a focus on the impact of large satellite constellations. She also has experience developing decision support tools and frameworks for tackling complex, multi-disciplinary problems. Alex obtained her Bachelor and Master’s degrees in Mechanical Engineering from the University of Cambridge, UK, on a Singapore Public Service Commission scholarship. Prior to joining Purdue University, she spent several years as policymaker in the Singapore government, where she worked in diverse fields including economics, finance, and infrastructure policies. Research interests: Satellite Constellations, Agent-Based Modelling, Game Theory, Space Sustainability, Space Policy, Optimization, Decision Support Systems