Groundwater and precipitation provided water to form Hellas Basin lakes throughout Mars history

The northeastern rim region of Hellas impact basin, located in the southern hemisphere of Mars, contained numerous ephemeral lakes throughout Mars' history, a new study reveals. A new paper published in Astrobiology examines a region where depressions may have been hosted ponding water that originated from different sources, including precipitation, fluvial transportation and ground water. Sediments partially filled the depressions or formed fan shaped deposits within these paleolakes. Some of t...