When scientists first found signs of a lake under Mars’ south pole in 2018, questions abounded over how such a feature could form and whether the measurements were accurate. Now, a study published this week in Nature Astronomy not only confirms the size and location of the first lake, but also shows three more, smaller bodies of water nearby.
The study adds 100 measurements to the team’s original 29 figures for a clearer picture of the region. The four lakes are hidden a mile under the surface of Mars’ icy south pole, and may be full of salt and sediments to remain liquid even in extreme cold temperatures. Some scientists not involved in the study are cautious about the research team’s conclusions, but the study authors see the discovery as an optimistic signal in the search for life on Mars.
“Here we have not just an occasional body of water,