Jezero Crater (image) Brown University Share Print E-Mail Caption A false-color topographic map (blue marks low elevations) shows the area around Mars's Jezero Crater, which was home to an ancient lake system. New research shows that the region around Jezero hosted at least two separate episodes of water activity. Credit NASA/MSSS/ASU/GSFC Usage Restrictions None Share Print E-Mail 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.