According to a new study, the possibility of having an underground water lake on the red planet cannot rest on water salinity alone. Need a subsurface magmatic activity.
This does not mean that the new study goes to disavow that of last year, but supports the possibility of a relatively recent underground magmatic activity, within a few hundred thousand years from now. If this were true, then Mars could still be an active planet today, geologically speaking….
Full research downloadable in PDF for free:
“Water on Mars, With a Grain of Salt: Local Heat Anomalies Are Required for Basal Melting of Ice at the South Pole Today” https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2018GL080985
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