Graphic of Process of Discovery (IMAGE) DOE/Brookhaven National Laboratory Caption Deciphering the changes in the 3-D structure of iron (center) upon heating, from top, clockwise: The in situ x-ray absorption experiment generates an extended x-ray absorption fine structure (EXAFS) spectrum that is fed into a neural network to extract the radial distribution function, unique for each material and atomic arrangement. Credit Brookhaven National Laboratory Usage Restrictions OK for use with stories about this work 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.