NASA @NASA
Just arrived at @NASAArmstrong: our 1st all-electric experimental aircraft, or X-plane! ✈️ @NASAaero researchers will use it to demo the benefits electric propulsion may have for efficiency, noise and emissions. Details: https://t.co/K6DYLBpr9m https://t.co/Kht2idCjCs — PolitiTweet.org