Honda Motor Company has unveiled plans to test its high-differential pressure water electrolysis system on the International Space Station (ISS) in partnership with Sierra Space and Tec-Masters. This initiative showcases Honda's commitment to exploring hydrogen fuel technology beyond Earth, with a focus on sustaining life on the Moon. The regenerative fuel cell system being tested can produce hydrogen, oxygen, and electricity in a closed-loop cycle using solar energy. During the day on the Moon, solar panels power electrolysis to split water into hydrogen and oxygen, while stored hydrogen is utilized at night to generate electricity and oxygen necessary for human life. The system's efficiency and effectiveness will be scrutinized through stress testing in the ISS's microgravity to optimize it for space conditions. Furthermore, the project aims to leverage insights for terrestrial applications and contribute to Honda's decarbonization goals by 2040. Despite challenges in the hydrogen sector, Honda remains steadfast in its investment. Support from NASA in transportation logistics and Tec-Masters' technical guidance emphasize the collaborative effort in this innovative venture towards utilizing hydrogen technology in space and potentially on Earth.