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Mars may hold enough liquid water to cover the entire planet to a depth of 1 to 2 kilometres — trapped in tiny cracks and pores in rock roughly 11.5 to 20 kilometres underground, far beyond anything we've ever been capable of drilling on Mars. - Space Daily
Thursday, August 20, 2026
InSight data can be modelled as water-saturated rock deep beneath Mars, but a 2026 reanalysis shows the planet-wide estimate remains highly sensitive to assumptions about the unseen crust.
Mars may be hiding a tremendous amount of liquid water, but almost certainly not as a buried sea. A 2024 analysis of NASA’s InSight data found that the measurements were best matched by fractured ign…
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