NASA @NASA
Today is #NationalAviationDay and our friends at @NASAAero are hosting a @Reddit AMA to celebrate the occasion! 🥳 Join in from now to 1:30pm ET (1730 UTC) to ask questions of researchers developing a future of self-flying vehicles: https://t.co/vTlHvgEsRc https://t.co/js2HW6zmY0 — PolitiTweet.org