Digging Deep: Mars could have had liquid oceans two billion years ago

Digging Deep: Mars could have had liquid oceans two billion years ago

We observe ancient shorelines, indicating the presence of a large standing body of liquid water, but little to no erosional activity in the form of rivers/valleys. We observe rock deposits from tsunamis that occurred in the past; but tsunamis would not have been possible had the ocean been completely frozen. This paradox has been under […]

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