Are these shapes on Mars merely a coincidence or is this a form of extraterrestrial communication? See more in this scene from Season 1, Episode 7, "Aliens Codes and Messages." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. ...

Is Hieroglyphics the language of the gods? Or otherworldly beings? See more in this scene from Season 1, Episode 7, "Aliens Codes and Messages." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more ...

Is this rock trying to convey a secret message? See more in Season 1, Episode 7, "Aliens Codes and Messages." Watch your favorite episodes of Ancient Aliens on The HISTORY Channel website at http://history.com/schedule. #AncientAliens Subscribe for more from Ancient Aliens and other great ...