Nicole Victoria "Duke” Aunapu Mann is an American test pilot and NASA astronaut. She is an F/A-18 Hornet pilot and a graduate of the US Naval Academy, Stanford University, and the US Naval Test Pilot School.She has over 2,500 flight hours in 25 types of aircraft and 200 carrier landings, and has flown 47 combat missions in Iraq and Afghanistan. Mann completed astronaut training in 2015 and was assigned in August 2018 to Boe-CFT, the first crewed test flight of the Boeing CST-100 Starliner, but subsequently reassigned to the SpaceX Crew-5, becoming the first female commander of a NASA Commercial Crew Program launch.