text: Some people argue that, due to the cloudiness on the planet, alien life could have been hidden by haze. However, NASA sent the Mars Global Surveyor on "a cloudless summer day in Cydonia" and captured another photo. Garvin explained "As a rule of thumb, you can discern things in a digital image 3 times bigger than the pixel size." Garvin knew if there were any pyramids or shacks, the camera would have been able to capture it and he would have been able to see it. Thus, there is no chance haze could have hidden the aliens. People also argued that the Face is bona fide evidence of life on Mars- evidence NASA would rather hide. This is not the case. Authors thought this would be a good way to engage the public and attract attention to Mars. Therefore, the belief of life on Mars is simply just for the public. It has been in Hollywood films, books, magazines, and radio talk shows. The Face on Mars was used to engage the public, not neccessariy to inform.