Hydrogen, the key ingredient in water and a potential fuel source for vehicles, is at the core of a groundbreaking project at the Guiana Space Centre in Kourou, France. The European Space Agency (ESA) and the French Space Agency (CNES) are collaborating on Project Hyguane, investing €40.5 million to produce hydrogen through solar-powered electrolysis of water. This renewable hydrogen is set to fuel Europe's latest heavy-lift rocket, Ariane 6, revolutionizing space travel. By 2026, the Guiana Space Centre will boast new hydrogen production facilities, contributing to a 12% supply for nine annual flights and saving over 3,000 tonnes of carbon dioxide emissions each year. Ariane 6 is a game-changer in rocket technology, providing increased power and flexibility while reducing the carbon footprint with innovative cryogenic tanks. The rocket's journey showcases hydrogen's vital role: propelling the main stage with the Vulcain 2.1 engine and fueling the upper stage's Vinci engine for precise orbital drops and controlled deorbiting. This ambitious project not only aims to launch massive missions to low-Earth orbit but also ventures far into deep space, shaping the future of space exploration with renewable energy sources and advanced technology.