Vein of Martian Clay and Carbonate (IMAGE) University of Leicester Caption This image shows nanometer-scale atomic lattice spacings (measured by high-resolution TEM) in serpentine. Credit University of Leicester Usage Restrictions Use only with credit. 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.