An international team of researchers has found new evidence for the possible existence of liquid water beneath the south polar ice cap of Mars.
The results, published in the journal Nature Astronomy, provide the first independent line of evidence, using data other than radar, that there is liquid water beneath Mars' south pole.
The researchers, led by the University of Cambridge with involvement from the University of Sheffield, used spacecraft laser-altimeter measurements of the shape of the upper surface of the ice cap to identify subtle patterns in its height.
