High-Precision Atomic Clock (IMAGE) University of Zurich Caption An initial high-precision atomic clock prototype, ACES (Atomic Clock Ensemble in Space), is already due to be taken to the Columbus Space Lab at the International Space Station (ISS) by 2014. Credit European Space Agency ESA, D. Ducros Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.