Gaëtan Kerschen is a Professor of Aerospace Engineering in the Aerospace and Mechanical Engineering Department at the University of Liège, Belgium. He founded and directs the Space Structures and Systems Laboratory (S3L). His publications are primarily in the areas of structural dynamics (with a particular focus on aircraft and satellite structures) and orbital mechanics. He teaches courses in satellite engineering, nonlinear vibrations and astrodynamics. He is the co-founder of NOLISYS, a startup company which provides solutions and software for nonlinear vibrating systems.