What can ancient rivers on Mars reveal about the planet’s past and its potential for life? In this Hot Science – Cool Talks with Timothy Goudge, explore ancient rivers, catastrophic floods, and massive drainage systems on Mars, and how the planet’s lack of plate tectonics shaped its unique landscape and potential for life. By studying relic rivers and water-shaped landscapes on Mars, scientists are uncovering clues about the planet’s history and where life may once have had a chance to exist. After all, where waters flow, life often follows.