Figure 1 (IMAGE) Tohoku University Caption Diagram showing the processes of how organic matter was formed on early Mars. Credit Shungo Koyama Usage Restrictions Reporters may use these materials freely in news coverage with appropriate credit information. 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.