Clover Growth (IMAGE) PLOS Caption Observed growth differences between clover (Melilotus officinalis) inoculated with nodule forming bacteria Sinorhizobium meliloti (left) and a clover plant not inoculated when grown in Martian regolith Credit Harris et al., 2021, PLOS ONE, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/) Usage Restrictions Credit must be given to the creator. License CC BY 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.