The face could not be an alien act because of the effect that it shows when it is showing the appearance. The only time it actually look like a face is when the sun is at a certain angle that makes the mouth and eyes appear. The face is made of rock sticking out of the ground. It revealed a natural land form , because there was no alien monument anyway. The picture shows the martian equivalent of a butte or mesa which is a landform that common around the american west. The face is just a example of corrosion on mars that there was a rock there that after so long got corroded into looking like a face by chance. It coulnt have been by alien hands because we wouldv noticed some type of life form around it by now. And the research shows that it is just a rock form that was corroded into a face. by the way you can only see it in certain ways.