Since the dawn of the telescopic age and even now in the age of robotic probes, people have been finding "evidence" of alien civilization on the planet Mars. With even a simple telescope, the Martian polar ice caps can be distinctly seen as can regions of darker and lighter features. As telescopic technology improved, more details could be discerned. Unfortunately, the human mind has the ability to see things that aren’t actually there, a phenomenon known as pareidolia.