Scanning electron microscope (IMAGE) Chinese Academy of Sciences Headquarters Caption Fig. 2 Scanning electron microscope (SEM) image of micron-scale abiotic organic matter and surrounding goethite in the oceanic crust of the Southwest Indian Ridge. Credit Image by NIGPAS Usage Restrictions News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. License Original 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.