text: The more research the reasearchers did the more facts they found. They had many sightings like this before and they figured maybe a alien did not put that figure on mars. Reasearchers may have thought this because there had been many different formations on earths surface, it was most likely caused by earths erosion or natural features. They compare some ideas to it just like the "Middle Butte in the snake river of Idaho." There had never been sightings of aliens before why would there be now.