Parabolic flight research allows scientists to conduct Earth-based studies that could lead to enhanced astronaut safety and performance. The research could also demonstrate promising technologies for space exploration and the expansion of space commerce. Parabolic flights test interventions, protocols, space equipment, technologies, instruments, and experiments in weightless or partial-gravity conditions that are achieved when a specialized plane flies up-and-down maneuvers in a u-shaped curve called a parabolic path.