Honda is venturing into space exploration with its hydrogen fuel cell technology, planning to test a regenerative energy system on the International Space Station (ISS) to support sustainable living on the Moon. Collaborating with Sierra Space and Tec-Masters, Honda will demonstrate the system's ability to provide continuous power and breathable oxygen using solar energy and water. The technology relies on high-differential pressure water electrolysis to produce hydrogen, oxygen, and electricity, essential for life support in space. During the lunar day, the system utilizes solar energy to split water into hydrogen and oxygen, while the regenerative fuel cell takes over during the lunar night, using stored resources for electricity generation and oxygen supply. The process also generates water as a byproduct, which is recycled back into the system, highlighting its efficiency and cleanliness. Honda's initiative aligns with its Space Development Division in the U.S., aiming to collaborate with American space entities and advance lunar missions under the Artemis program. This project underscores Honda's commitment to pioneering technology and sustainable solutions for a future beyond Earth, potentially revolutionizing space exploration and human habitation on the Moon.