A student pilot assigned to the 23rd Flying Training Squadron at Fort Rucker, Alabama, tries on equipment, while an aerospace physiology specialist from the 14th Operational Medical Readiness Squadron makes sure the equipment fits correctly on August 21, 2020, at Columbus Air Force Base, Miss. Aerospace physiology specialists are responsible for teaching pilots and aircrews the essential skills they need to handle in-flight emergencies through various training such as aircraft pressurization, night vision, emergency first aid, oxygen equipment, physiological effects of altitude and emergency escape from aircraft. (U.S. Air Force photo by Airman 1st Class Davis Donaldson)