NASA Administrator Jim Bridenstine speaks during the "National Symphony Orchestra Pops: Space, the Next Frontier" event celebrating NASA's 60th Anniversary, Friday, June 1, 2018 at the John F. Kennedy Center for the Performing Arts in Washington. The event featured music inspired by space including artists will.i.am, Grace Potter, Coheed & Cambria, John Cho, and guest Nick Sagan, son of Carl Sagan. Photo Credit: (NASA/Aubrey Gemignani)