160211-N-SQ432-039 ANNAPOLIS, Md. (Feb. 11, 2016) – Capt. Chris Cassidy, chief, NASA astronaut office, addresses midshipmen of the U.S. Naval Academy (USNA) about what NASA is currently working on, during the annual Astronaut Convocation, Feb. 11 in Alumni Hall. This event was an opportunity for the Brigade of Midshipmen to learn about the future of space flight and exploration from leaders in the field, as well as current and former astronauts. (U.S. Navy photo by Mass Communication Specialist Second Class Jonathan L. Correa/RELEASED)