text: Aliens could not have made the face becasue it would take to long. Here is why NASA is proving facts. This is not possible in any shape, way, or form because it would take over 300 years to do so. You would say that the aliens just bulit it as we bulid buliding today. But, they would have to have constrcution workers working every single day for this to happen and that is why NASA says it is impossible. Together that is why I do not think is is possible.