On this season of ANCIENT ALIENS®, ancient astronaut theorists continue to explore evidence of extraterrestrial contact around the world. From enormous geoglyphs on both the Earth and Mars to strange 17,000-year-old-statues in Africa to remote viewing operations targeting UFOs and other intriguing phenomena, these amazing discoveries shed new light on the theory that extraterrestrials not only visited humans in the distant past - but may still be present on Earth today.