ACES mission delivers record-breaking atomic clock to ISS for precision timekeeping
Paris, France (SPX) Apr 23, 2025 ESA's Atomic Clock Ensemble in Space (ACES) has begun its journey to the International Space Station (ISS), where it will revolutionize timekeeping from orbit. Equipped with two ultra-precise atomic clocks and a sophisticated time-transfer system, ACES is set to broadcast the most accurate time signals ever generated in space, while enabling key experiments in fundamental physics, including real
Paris, France (SPX) Apr 23, 2025
ESA's Atomic Clock Ensemble in Space (ACES) has begun its journey to the International Space Station (ISS), where it will revolutionize timekeeping from orbit. Equipped with two ultra-precise atomic clocks and a sophisticated time-transfer system, ACES is set to broadcast the most accurate time signals ever generated in space, while enabling key experiments in fundamental physics, including real
ESA's Atomic Clock Ensemble in Space (ACES) has begun its journey to the International Space Station (ISS), where it will revolutionize timekeeping from orbit. Equipped with two ultra-precise atomic clocks and a sophisticated time-transfer system, ACES is set to broadcast the most accurate time signals ever generated in space, while enabling key experiments in fundamental physics, including real 
