Dimorphos (left) and Didymos (right) (IMAGE) University of Maryland Caption Dimorphos (pictured left), a small asteroid moon, orbits a larger asteroid called Didymos (right). Credit Photo courtesy of NASA/Johns Hopkins APL. Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC 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.