The Miramar Air Show is the nation's largest military air show and hosts around half a million people each year. This year's theme is "Marines in Flight: Celebrating 50 Years of Space Exploration." The show will feature a first-ever Osprey performance, the return of Robosaurus, and former astronaut and Marine aviator retired Maj. Gen. Charles Bolden, Jr., current NASA Administrator, is slated to speak during an opening ceremony.