Hydrogen Jet (IMAGE) Deutsches Elektronen-Synchrotron DESY Caption This is the hydrogen jet inside the sample chamber at the FLASH free-electron laser. Credit Sven Toleikis/DESY 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.