Life on Mars (1 of 3) (IMAGE) University of Cincinnati Caption University of Cincinnati graduate student Andrew Gangidine is studying silica deposits in Yellowstone to find an elemental biosignature that NASA can use to look for life on Mars when it launches its Mars 2020 rover. Credit Joseph Fuqua II/UC Creative Services 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.