text: Next the illision of the face was really just a rock formation. Qouted from the passage it says "huge rock formation... which resembles a human head..." (3) This proves that it's just a rock in the shape of a human's face/ head. It also says in that same passage "It would be a good way to engage the public and attract attention to Mars." Therefor this shows this it really was just a illision and that people really just wanted attention for mars.