New insight on Mars: A network of ancient lakes and discontinuous river segments



With an abundance of ice recently detected just below the surface of Mars [Boynton et al., 2002],the possibility that life has existed or still may exist on Mars may hinge on examining its past climate and the duration of surface water flows. Was Mars ever a warm and wet planet, or has it always been cold and dry? The study of surface depressions, in conjunction with river features, yields new insight into these questions. Together, these features provide a more complete picture of a surface water network that may have existed on what must have been a warmer early Mars.