"NASA's poster for National Aviation Day 2016. A young girl looks up at some of the experimental ideas for future aviation. NASA said: ""It's an exciting time for aviation, with potential NASA X-planes on the horizon and a lot of new technologies that are making airplanes much more Earth friendly. Use National Aviation Day to excite and inspire the young people you know about exploring aeronautics as a future career. Credits: NASA / Maria C. Werries"""
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