Atom Defects 3 (IMAGE) DOE/Argonne National Laboratory Caption To map out changes in the metal palladium on the nanoscale, researchers used the diffraction patterns of X-rays. Credit Mark Lopez/Argonne National 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.