What can parabolic flights teach scientists and engineers about electrolyzers and how the latter can help advance human missions to the Moon and Mars? This is the goal of a recent grant awarded to the Mars Atmospheric Reactor for Synthesis of Consumables (MARS-C) project, which is sponsored by the Southwest Research Institute (SwRI) and The University of Texas at San Antonio (UTSA). The $500,000 award for this research is part of NASA’s TechLeap Prize program with the goal of testing experimental electrolyzer technology that can be used for future missions.