First 'Guardian' in space: NASA astronaut on ISS enters Space Force

First 'Guardian' in space: NASA astronaut on ISS enters Space Force
By

Col. Michael Hopkins, who has served for 27 years in the Air Force, voluntarily transferred to the Space Force while aboard the International Space Station on Dec. 18, 2020.



December 19, 2020 at 07:43AM
via Space.com read more...