Lake Catalina (IMAGE) University of Copenhagen - Faculty of Science Caption This is Lake Catalina, the lake-surface measures around 20 sq. kilometer. The Danish scientists want to study the lake in detail -- e.g. chart its depths. Credit Raphaël Dein 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.