It sat on or beneath the Martian surface for almost all the time since, after which suffered a horrible blow. The presence of sulfates and other chemical compounds within the rocks indicates that water as soon as flowed over the surface of Mars. Even at the moment there are (still controversial) hints of transient, brief-lived events where liquid water flows on the floor solely to quickly evaporate into the thin air.Robotic explorers sent to Mars have proven us a transparent history of a watery surface, however. Once Mars cooled down sufficient, it lost any magnetic field it might need had, so it turned sufferer to the Sun’s solar wind. Mars, although, was smaller than the Earth, and farther from the Sun.