NASA Is Developing an All-Electric X-57 X-Plane: A Cleaner Way to Fly

We're celebrating National Aviation Day! After all, we are the National Aeronautics and Space Administration. Aviation and aeronautics are as much a part of our mission as space travel. NASA http://www.nasa.gov/image-feature/nasa-is-developing-an-all-electric-x-57-x-plane-a-cleaner-way-to-fly
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