Most satellites in Low Earth Orbit last only 3–5 years, yet today’s solar panels are built for decades, making them unnecessarily heavy and costly. This project tackles this mismatch by developing next-generation perovskite tandem solar cells: ultra-light, efficient, and ideal for space’s dry environment. By integrating advanced materials, smart electronics, and rigorous testing, we aim to deliver affordable power for future satellite constellations while building Vietnam’s core space technology capacity and training the next generation of innovators.