Core Insights - The recent surge in interest for space photovoltaics has been driven by news related to Elon Musk's team, although the technology is still in the early stages of exploration and validation [1] - Gallium arsenide (GaAs) solar cells remain the mainstream choice for commercial space applications and space stations due to their high conversion efficiency and radiation resistance, despite their high costs [1] - The heterojunction (HJT) perovskite technology, which has garnered significant market attention, is still in the experimental phase and far from large-scale commercialization [1] - Elon Musk's approach to space photovoltaics has evolved from conceptual statements to concrete plans, focusing on technology development, capacity building, and practical applications for Tesla and SpaceX [1] - The technological evolution of space photovoltaics has progressed through four iterations, leading to a current landscape dominated by GaAs technology, increased penetration of P-type heterojunctions, and accelerated research in perovskite tandem technology [1]