Buried lakes of liquid water discovered on Mars

[muriel_volestrangler]

Three underground lakes have been detected near the south pole of Mars.
...
In 2018, researchers used data from the Marsis radar to report signs of a 20km-wide subsurface lake located 1.5km under Mars' south polar layered deposits, a thick polar cap formed by layers of ice and dust.

However, that finding was based on 29 observations collected by Marsis between 2012 and 2015. Now, a team including many of the same scientists from the 2018 study have analysed a much bigger dataset of 134 radar profiles gathered between 2010 and 2019.
...
There's not enough heat at these depths to melt the ice, so scientists believe the liquid water must contain high concentrations of dissolved salts. These chemical salts (different to the stuff we sprinkle on our chips) can significantly lower water's freezing point.

https://www.bbc.co.uk/news/science-environment-54337779

[soothsayer]

1. Cool

[Igel]

2. Supercooled. n/t