text: The face on Mars could have been caused by the wind. When planets rotate it could have cause some wind, and the wind could start to form piles of dirt. The dirt could have been moved into the shape of a face. The shadows give it an illusion of eye, nose, and mouth. The face didn't have any footprints around it so aliens couldn't done it. On Earth the wind blows, and pollen from one flower goes to another. Dirt on Mars could of blew to one area, and it could form a face.