New Mars Forums

The Mars orbiters, both American and EU have shown water on Mars, yet the People at NASA, that control the ground based Rovers,  keep saying that they are looking for past evidence of water on the Martian surface. If there is supposedly water with in a few feet of the surface, why don"t they just dig a hole and analyze the material.  They keep looking for minerals and rocks that prove water once existed.  If we are ever to go to Mars we need to know where the water is and how much.  You cannot drive rocket engines with rocks.