... Mars is not even REMOTELY the furthest planet from the sun. Not to mention that ice formed from water is only white if it has air or other gases trapped inside of it, and you have a two-fold problem. 1- there is limited, if any at all, atmosphere, so no gaseous bubbles to be trapped in the ice. 2- there is no liquid presence on the surface of Mars to freeze, let alone solid evidence that would count as proof of water being present, so no ice in the first place. I'm sorry for the rant, but that question was just too damn stupid to let go.