Aliens on our planet?? Join us... and find out more! Subscribe for more from Unveiled ► https://wmojo.com/unveiled-subscribe In this video, Unveiled takes a closer look at the theory that alien life may have ALREADY visited Earth. With the likes of Avi Loeb pushing against the mainstream, ...

State of the art technology help researchers find out what is hiding beneath the mysterious and ancient Nazca Lines in Peru Subscribe to Discovery UK for more great clips: http://www.youtube.com/subscription_center?add_user=DiscoveryTV Follow Discovery UK on Twitter: ...