NASA Funds New Studies Looking at Future of Sustainable Aircraft https://www.nasa.gov/directorates/armd/nasa-funds-new-studies-looking-at-future-of-sustainable-aircraft/ #NASA #AeronauticsResearchMissionDirectorate #AdvancedAirTransportTechnology #AdvancedAirVehiclesProgram #SustainableFlightDemonstrator #SustainableFlightNationalPartnership