Photochemical Pathways (IMAGE) Moscow Institute of Physics and Technology Caption These are the main photochemical pathways known or expected to occur on Mars and their relation to ACS measurement capabilities. Credit MIPT Press Office 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.