Recently, researchers from Peking University reported large-area perovskite solar cells which were more stable 35 km up than at ground level. The researchers also tested the stability of the devices by sending them to an altitude of 35 km above the Inner Mongolia autonomous region of China using an high-altitude balloon. Scientists from UCL and ISIS also have been testing perovskite solar cells to see how resilient they are to the neutron irradiation they would be exposed to in space. These solar cells maintained good stability in space conditions. Now question is could we use perovskite materials for space applications? could these cells replace existing solar fits?