Sascha Oswald and Eberhard Lehmann (IMAGE) Helmholtz Association Caption Sascha Oswald and Eberhard Lehmann at the PSI neutron tomography facility ICON, where the tomographic studies of the water distribution around plant roots were performed. Credit M. Fischer/PSI 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.