SAN DIEGO (Feb. 12, 2011) AV-8B Harriers fly by the moon over San Diego Bay during the Centennial of Naval Aviation Open House and Parade of Flight at Naval Air Station North Island. The Navy is observing the Centennial of Naval Aviation with a series of nationwide events celebrating 100 years of heritage, progress and achievement in naval aviation. (U.S. Navy photo by Mass Communication Specialist 3rd Class Trevor Welsh/Released)