Airbus wants to launch a plane that is completely CO2 neutral by 2035 with the help of hydrogen-powered engines. It’s a big step away from fossil fuels and toward a cleaner future up in the sky. It doesn’t exactly look like an aviation revolution. Airbus’s newest aircraft design study glides through cloudless skies accompanied by celestial music — in an animated video. On a closer look it becomes evident though that the back of the fuselage doesn’t have any windows at all (see photo below). On top of the vertical stabilizer there is something sticking out that looks a bit like an antenna.