The FAA is on the leading edge of a new frontier in commercial space transportation, building the next generation (NextGen) of satellite-based navigation systems, and fostering the safe integration of unmanned aerial systems into our airspace. We can only dream of what the next 50 years of American ingenuity will look like, but FAA employees will be working to ensure that the United States continues to lead the world in aerospace safety, innovation and advancements that continue to push the limits of science and technology.