Finding Water Beyond Earth (IMAGE) University of Southern California Caption Large, smooth areas on exoplanet Vesta correlated with higher concentrations of hydrogen. Credit Image provided by Elizabeth Palmer and Essam Heggy 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.