Rate the following essay on its writing, argument, and language skills:
Alien life on Mars? Ever since NASA unveiled an image of a huge rock formation which resebmles a human head, conspiracy theorists have thought it is bona fide evidence of life on Mars. Scientists at Nasa say it is a natural landform. Although few scientists belive it is an alien artifact, photographing Cydonia became a priority for Nasa.

On April 5, 1998, Mars Global Surveyor flew over Cydonia for the first time and snapped a picture ten times sharper than the origial photos. The pictures revealed it was just a natural landform. Not everyone was satisfied.

On April 8, 2001, Mars Global Surveyor took a second look. This image was taken using the cameras absolute maximum resolution. If there were any objects in the picture, you would see what they were.

Landforms like this are common around the American West. What the pictures actually show are the Martian equivalence of a butte or mesa. It's really a lava dome that takes the form of an isolated mesa about the same height as the Face on Mars.

I can see how the mass could be mistaken as an alien form. There is no proff that it is an alien form though and NASA knows what they are talking about and researches it. Therefore it is proven to be a natural landform.

Score: 3