Future crewed missions to Mars will be easier if astronauts can use water that’s already on the Red Planet without having to bring it from Earth. Scientists know that there’s ice beneath the martian surface. But how deep underground would astronauts have to dig to get it?..

Source: https://astronomy.com/news/2019/12/water-just-inches-below-martian-surface?utm_source=asyfb&utm_medium=social&utm_campaign=asyfb&fbclid=IwAR2pOu65krnNNBpi-R-gZ_w2h-dlDvE21gCD01jE_ErP4MDe0dKRhIu3Aso