December 18, 2020
— The U.S. Space Force has added its first astronaut to its ranks, newly-named the "Guardians," during a ceremony held from Earth orbit.
Col. Michael Hopkins, who has served for 27 years in the Air Force, voluntarily transferred to the Space Force, the sixth and newest branch of the U.S. military, on Friday (Dec. 18), while continuing to serve as a NASA astronaut, flight engineer and SpaceX spacecraft commander on board the International Space Station.