Prof. Dr. Carsten Sachse (IMAGE) Forschungszentrum Juelich Caption Prof. Dr. Carsten Sachse next to the cryoelectron microscope of the Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (ER-C-3) at Forschungszentrum Jülich Credit Forschungszentrum Jülich / Sascha Kreklau Usage Restrictions Editorial use permitted in the context of this news item with credit to source License Original 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.