Top 5 Habitable Alien Planets - here we have examples of planets located within the habitable zone, for just one star. There are billions of stars out there. So the idea of the non-existence of extra-terrestrial intelligent to be highly absurd.
Dunes in Noachis Terra Region of Mars This enhanced-color image shows sand dunes trapped in an impact crater in Noachis Terra, Mars. Dunes and sand ripples of various shapes and sizes display the natural beauty created by physical processes. The area covered in the image is about six-tenths of a mile (1 kilometer) across.