NASA astronaut candidate Jasmin Moghbeli poses for a portrait in the Systems Engineering Simulator, a real-time, crew-in-the-loop engineering simulator for the space station and advanced spaceflight programs, Tuesday, July 9, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut candidate Frank Rubio poses for a portrait in the anechoic chamber, Wednesday, July 10, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Shane Kimbrough poses for a portrait in the Space Exploration Vehicle (SEV), an engineering concept used to test new technologies for future surface and deep-space exploration vehicles, Tuesday, July 9, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut candidate Loral O’Hara poses for a portrait in the Blue Flight Control Room, Tuesday, July 9, 2019 at NASA's Johnson Space Center in Houston, Texas. Photo Credit: (NASA/Bill Ingalls)