(IMAGE) Deutsches Elektronen-Synchrotron DESY Caption Here is a view into the main accelerator tunnel of European XFEL, where 100 superconducting accelerator modules are being installed. Credit Photo: Dirk Nölle, DESY Usage Restrictions Free for use by the media if reporting on the related press release 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.