The aviation industry has fully recovered from the corona dip and is going sky high again: worldwide passenger numbers and aircraft movements are growing. At the same time, the climate impact is increasing. Engineers are striving to make aircraft more efficient, but will that be enough? Will Sustainable Aviation Fuels, which can be made from green electricity, offer a solution? Or is flying on hydrogen and electricity the future? Fasten your seat belts as aviation expert Ir. Joris Melkert (TU Delft) takes you on a journey! In collaboration with KIVI Students Twente, Green Hub, and Newton.