text: Another big piece of evidence was shown in this story. In the text it says, " Scientists figured it was just another Martian mesa, common enough around Cyodnia, only this one had unusual shadows that made it look like an Egyptian Pharoah." Thats the sole cause. It was just a mesa that was photographed at the right time. If the shadows weren't there then it would just look like a regular mesa on Mar's surface. Also if you look in that picture you will see other mesas or landforms surrounding it. So that tells you that that area is full of landfroms.