Back dropped by the rotating earth, U.S. Army and NASA

Back dropped by the rotating earth, U.S. Army and NASA Astronaut Col. Andrew Morgan pauses for a photo opportunity during extravehicular activity (EVA) #64 at the International Space Station’s Alpha Magnetic Spectrometer worksite Jan. 25, 2020. Col. Morgan and Italian Air Force and ESA astronaut Col. Luca Parmitano participated in this fourth and final EVA to complete repairs on the AMS, a state-of-the-art particle physics detector. The emblems displayed on Col. Morgan's cuff checklist are U.S. Army Space and Missile Defense Command (top) and U.S. Space Command (bottom). (Photo by ESA Astronaut Luca Parmitano)