Are Martian Oceans Underneath Its Soil?

With evidence of liquid water beneath Martian soil recently appearing, some scientists speculate that the red planet may have a wet, frozen secret buried beneath its crimson sands.

(New Scientist Space) Mars is losing little water to space, according to new research, so much of its ancient abundance may still be hidden beneath the surface.

Dried up riverbeds and other evidence imply that Mars once had enough water to fill a global ocean more than 600 metres deep, together with a thick atmosphere of carbon dioxide that kept the planet warm enough for the water to be liquid. But the planet is now very dry and has a thin atmosphere.

It had been previously assumed that Mars had lost its atmosphere and water due to solar activity from the Sun. However, new evidence suggests that this theory may be just that–a theory.

Observations by the European Space Agency’s Mars Express hint that Mars is not losing enough atmosphere and water to justify the previous theory, leaving not only more questions about how Mars lost its original atmosphere but hope that oceans may lie beneath a world some see as a second Earth.

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