Ray of Light (IMAGE) Arizona State University Caption Ray of light: A new generation of ultrafast X-ray lasers is redefining the field of X-ray crystallography, revealing never-before-seen features and dynamic processes. The most powerful such instrument in its class -- the Linac Coherent Light Source (LCLS) at SLAC National Accelerator Laboratory -- was used in the current study. The graphic depicts the imaging of atomic scale features of the Photoactive Yellow Protein, with brilliant bursts of light lasting mere quadrillionths of a second. Credit Courtesy SLAC National Accelerator Laboratory 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.