text: First, NASA said the face looks like a sign of life but figured it was just a another Martian mesa, because stuff like this is common. But the face's unusual shadows made it look like an Egyptian Pharoah. Later on, NASA unveiled the image with a caption noted "Huge rock formation which resembles a human head, formed by shadows giving the illusion of eyes,nose, and mouth." The authors reasoned it would be a good way to engage the public and attract attention to Mars with the Face.