Why mars is red in color?

    Why mars is red in color.?

 Well,the answer is there in chemistry. Firstly, let me teach you that why the Earth is called Blue planet. It is because approximately 70% of the earth's surface is covered by the water. So we say that the Earth is the Blue Planet.Now we should also learn the rusting of iron . We know that rusting is an oxidation reaction.The iron reacts with the water in oxygen to form hydrated Iron oxide. This hydrated Iron oxide is the rust which we see in our daily life. The color of this hydrated iron oxide is reddish brown. Now, coming to the main question, 

why Mars is red in color.?

 The short answer is that Martian surface contains a large amount of rust or hydrated Iron oxide . In addition it is stated that the rocks and soil of the mars contains small bits of iron .Over the period of time the small bits of iron rusted. Hence the rocks and soil got their characteristic color of reddish brown. It is due to the presence of rust and the rocks and soils of the Mars that it appears red in color here. You may be thinking that water and oxygen is necessary for rusting, which is not there in the Martian Surface or harvesting can occur without water and oxygen. Well, there are different theories. But the most acceptable is that, once the Mars apparently had great deal of exposed iron on the surface. This exposed iron reacts with the atmospheric oxygen and water. So, huge portion of Mars oxygen and water is locked up and the rest .Nowadays, Many robots are sent to the Mars to search the evidence of water. Some of them are even digging the ground.ThereFore remember that it has rusted rocks and soil that Mars appears red in colour.