Cross-Section of Comet 67P (IMAGE) Proceedings of the National Academy of Sciences Caption Cross-section of comet 67P showing the 3D model of the layered structure compressed and folded by the collision of the lobes (arrows indicate the direction of compression). Credit Image credit: Marco Franceschi and Luca Penasa. 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.