NASA @NASA
City life has challengesā¦from crowds to traffic & more. In the near future, drones will face these & other challenges in our cities as they start flying. To help, @NASAaero is testing tech as part of a system to safely manage urban drone traffic. More: https://t.co/0wohfjPMXq https://t.co/J4IdIKjZEu — PolitiTweet.org