Network of Cloud Collisions (IMAGE) University of Copenhagen - Niels Bohr Institute Caption The image shows a river-like network of cloud collisions. The horizontal white lines indicate the time where rain begins to form. Later in the process, the structures become larger. The red areas are places where clouds are colliding and where heavy rain will subsequently often occur. Credit (Credit: Moseley, Hohenegger, Berg and Haerter) Usage Restrictions (Credit: Moseley, Hohenegger, Berg and Haerter) 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.