Conspiracy theorists convinced that Mars was once home to an advanced ET civilization believe that they've discovered new evidence for their theory in the form of an alien face on the surface of the Red Planet.
The oddity comes in the form of an image taken by the Mars Global Surveyor back in January of 2005 which, for some strange reason, apparently escaped the attention of anomaly hunters until this week.
Featured in the photo is a curious-looking crater that bears a somewhat striking resemblance to the iconic visage of an alien as we've come to know them in popular culture here on Earth.
While some may find such an assertion laughable, it appears, to the conspiracy theorists' credit, that such a notion was not lost on NASA itself when it processed the image.
Find out the remarkable way in which the space agency noted the crater's strange alien appearance at the Coast to Coast AM website.