Why Was Mars's Underground Lake So Hard to Find? - Breaking News!

A team of scientists discovered a 20 km wide liquid water lake beneath Mars' surface, using radar data from the Mars Express orbiter. This finding is significant as it suggests more water than previously evidenced on Mars. The study faced challenges due to Mars' freezing temperatures, but the presence of perchlorates, which lower water's freezing point, makes the existence of liquid water more plausible. Further exploration is needed to confirm these findings and explore potential life, but current planetary protection laws limit direct sampling.

What challenges do scientists face in confirming the existence of the liquid water lake on Mars?

What are the implications of finding a liquid water lake on Mars for the search for extraterrestrial life?