There might be a hidden ocean’s worth of liquid water below the surface of Mars, seismic evidence suggests.
According to a new paper published April 25 in the journal National Science Review, recordings of seismic waves from deep within the Red Planet indicate that a layer of liquid water may be lurking in the Martian rocks between 3.4 and 5 miles [5.4 to 8 kilometers] below the surface.
The total volume of hidden water could flood the whole of Mars’ surface with an ocean 1,700 to 2,560 feet [520 to 780 metres] deep, around the same volume of liquid that is contained within Antarctica’s ice sheet, the study authors estimated.
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