Aurora Flight Sciences, a Boeing company, has achieved a significant milestone in aviation by completing a successful flight test of its hydrogen-fuel-cell-powered Skiron-XLE unmanned aircraft system. The test, which lasted 7 hours, demonstrated the capabilities of hydrogen as a power source for extended flight endurance, surpassing the performance of the battery-powered version of the aircraft. This achievement highlights the potential of hydrogen fuel cells in enhancing the capabilities of unmanned aerial systems, showcasing their ability to operate for longer durations. The successful test underscores the growing interest in sustainable aviation solutions, with hydrogen playing a key role in reducing emissions and increasing operational efficiency. Boeing's Aurora Flight Sciences' accomplishment signifies a step forward in the development and adoption of hydrogen technology in the aerospace sector, paving the way for future innovations in environmentally friendly aviation.