Annotation: This photo was officially published on August 7, 2012 by NASA. In the photo we see the Martian surface and atmosphere of Mars in brown tones.
And it's a real picture of the Martian surface and sky over Mars! Look! The sky is blue! And the color of the ground is comparable with the ground on Earth! You can verify this by downloading photos from the official site of NASA and build automatic adjustment of color images! NASA is lying to people! For what it do? We need to know the truth!