ATM is a department of the Polytechnic School of ULB (Université Libre de Bruxelles).

ATM stands for Aero-Thermo-Mechanics and is active in different research topics related to space as hybrid rocket engines, flow visualisation in rocket engine combustion chambers, retro-propulsion for reusable launchers, CFD flow simulations for re-entry of space vehicles, reusable launcher technology as reusable valves and actuators, physics of the space environment, micro-gravity experiments...