Caption: 
The Jezero Crater on Mars, the landing site for NASA's Mars 2020 mission, shows evidence of water-carved channels and transported sediments. Colors highlight the distribution of clays and carbonates. An SwRI scientist updated Mars chronology models and predicted that these surfaces could have formed more than 3 billion years ago, hundreds of millions of years earlier than previously thought. 

Credit: 
Courtesy of NASA/JPL-Caltech/MSSS/JHU-APL