Two NASA scientists once measured the water signature of on the surface of Mars and indicated that billions of years ago, the surface of Mars had more water than our Arctic Ocean. So it means that Mars was much warmer and wetter many years ago.
Now the question is where did the water go? It just cannot disappear. The new research of scientists indicates that all the water is soaked by a rock just as a sponge soaks water. And now, probably it is locked inside the rocks of Mars.
So, it means that the Red Planet dried out as the atmosphere of Mars was blown away by the solar winds. Researchers have collected rocks using computer modeling, techniques and data; also the Oxford University’s scientists said that rocks on Mars can hold more than 25% water than the earth’s equivalent rocks, which might help to explain where the water is.
The lead researcher Jon Wade said, “People have thought about the question for a long time, but never tested the theory of the water being absorbed as a result of simple rock reactions,” and the differences between temperature, pressure and chemical makeup helps the rocks to soak water; while the earth has lakes and oceans.
According to simulations, the rocky surface of Mars can hold down the water to a greater depth than the earth’s rocks can. Wade explained, “The earth’s current system of plate tectonics prevents drastic changes in surface water levels, with wet rocks efficiently dehydrated before they enter the earth’s relatively dry mantle.”
Everyone also thinks that the lava layers of volcano made the rocks even more absorbent. Wade said. “On Mars, water reacting with the freshly erupted lavas that formed its basaltic crust resulted in a sponge-like effect, the planet’s water then reacted with the rocks to form a variety of water-bearing minerals. This water-rock reaction changes the rock mineralogy and caused the planetary surface to dry and become inhospitable to life “
And also, scientists are thinking that Mars is hiding a huge reserve of water in the form of underground ice. So, we can take a chance to find the water. And if we succeed then we’ll have a jackpot!