To prove that it wasnt done by aliens is because ive read the passage and this is what I found. New high-resolution images and 3D altimertry from NASAs mars globel survey spacecraft reveal the face on mars for on Marsfor what it really is called A mesa. Twenty five yaers ago somthing funny happened around mars NASAs spacecraft was circling around planet. A few days later,NASA unveiledthe imaage for all to see. Although few scientist believed the face was an alien artifact photographing Cydonia became a priority for NASA when mars global surveyor [MGS] arrived at the red planet in sSeptember 1997 eighteen long years after the viking missions ended. So it was true that aliens did not do that to mars because aliens are not real and also NASA even said that they did it on mars they said it was an accident that happened in September 1997. Also in April 5,1998 ,when Mars global surveyor flew over cydonia for the first time,Micheal malin and his mars obiter camera [MOC] team snapped the picture ten times sharper than the original viking photos.