PRO Imagery Submittal - ACES

jsc2025e015679 (3/6/2025) --- The closure of the instrument panel of the Atomic Clock Ensemble in Space (ACES) has taken place at Airbus Friedrichshafen, Germany. ACES is an ESA instrument that tests fundamental physics, such as Einstein’s theory of general relativity, from the International Space Station. According to this theory, gravity affects the passing of time—time flies faster at the top of Mount Everest than at sea level.