June 13, 2024

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Is there really a huge underground lake near Mars’ south pole?

Is there really a huge underground lake near Mars’ south pole?

Doubts about the possibility of a lake of liquid water buried beneath Mars’ southern ice sheet have been raised by new computer simulations, which suggest that closely compressed layers of ice could produce the same radar reflectivities that liquid water can.

In 2018, E.S.A Mars Express The orbiter used the MARSIS (Mars Advanced Radar for Subsurface and Ionospheric Sounding) instrument to map what appeared to be 20 kilometers (12.4 miles) across. A lake of liquid water It is buried in 1.5 kilometers (0.93 miles) of ice in an area called Planum Australe, in the south polar plain on Mars. Similar evidence emerged later Potentially dozens of lakesBut some are so close to the surface that it seems impossible for liquid water to be there.