NASA @NASA
Our #Mars2020 rover will carry a special passenger with it to the Red Planet next year: an autonomous #MarsHelicopter š š“. It'll be the first aircraft to fly on another planet & today engineers began attaching it to the rover. Get more details: https://t.co/v79HgWXCVr https://t.co/QNsXXhXv7k — PolitiTweet.org