Explanation:

According to a new study, there could be oceans’ worth of liquid water deep in the rocky outer crust of Mars. While scientists have known about water ice at the Martian poles for a long time, this is the first time they have discovered liquid water on the planet. The study, ‘Liquid water in the Martian mid-crust’, was published last week in the journal Proceedings of the National Academy of Sciences (PNAS).