Professor Étienne Ghys, Permanent Secretary of the French Academy of Sciences and Emeritus Research Director at the French National Centre for Scientific Research (CNRS), delivered a thought-provoking HKIAS Distinguished Lecture on “Soccer Balls: Their History, Geometries, and Aerodynamics” on 30 October 2024 at City University of Hong Kong. The event, facilitated by Professor Neil Chada from the Department of Mathematics, attracted a diverse audience of academics and students. Notably, Ms Camélia Aissat, Deputy Consul of Education and Culture and Mr Louis Doucet, Head of Press and Communication from the Consulate General of France in Hong Kong & Macau, also showed keen interest and attended the lecture.