Using a radar instrument on an orbiting spacecraft, scientists have spotted what they said on Wednesday appears to be a sizable salt-laden lake under ice on the southern polar plain of Mars, a body of water they called a possible habitat for microbial life.
Reservoir detected is the first stable body of liquid water ever found on Mars. Scientists Roberto Orosei [left], Elena Pettinelli [centre] and Enrico Flamini pose near a replica of the Cosmo Sky Med satellite before a news conference where they announce after first-time detection of liquid water on Mars by Italian radar MARSIS, on board the ESA’s Mars at the Italian Space Agency headquarter in Rome | Reuters
https://www.theweek.in/news/sci-tech/2018/07/26/underground-lake-found-mars-raises-possibility-life.html