Find evidence of groundwater around Mars?
Mars today may look like an arid, dusty planet, but it used to contain a huge system of groundwater.The crater lake on Mars changes shockingly
A lake that exists on the crater on Mars suddenly turns into a dry mound with no water drop.Detected 3 billion year underground water tank on Mars
A 3 billion-year-old underground water tank that has just been found on Mars is stirring up scientific circles.