A New Heuristic Approach for Low-Thrust Spacecraft Trajectory Optimization1Peter Coppens' and Panagiotis Patrinos' research is supported by the Fonds Wetenschappelijk Onderzoek PhD grant 11E5520N and research projects G0A0920N, G086518N and G086318N; Research Council KU Leuven C1 project No. C14/18/068; Fonds de la Recherche Scientifque – FNRS and the Fonds Wetenschappelijk Onderzoek – Vlaanderen under EOS project no 30468160 (SeLMA). Ben Hermans' and Goele Pipeleers' research benefts from KU Leuven-BOF No. PFV/10/002, from project No. G0C4515N of the Research Foundation - Flanders (FWO - Flanders), from Flanders Make ICON: Avoidance of collisions and obstacles in narrow lanes, and from the KU Leuven Research project No. C14/15/067. Issue 2 (2020)