Ancient Cave Paintings-Ancient Astronaut Theory

Discoveries of ancient artwork depicting mysterious figures have helped give rise to the “Ancient Astronaut Theory”, which claims that alien beings visited prehistoric humans, possibly interacting and sharing knowledge with them. Advocates of this theory usually point to specific examples, such as a particular rock carving in the Val Camonica site in Italy, as well as the Wandjina Petroglyph (above) sites in Australia. Using these examples as evidence reaches unsturdy ground when held up to scientific scrutiny. The popular image of two “alien” figures in Val Camonica was picked out of over 200,000 drawings – a pretty clear sign of confirmation bias. Testing at the Wandjina site showed some drawings had been repainted numerous times over, with the images evolving over time at the artists’ discretion, rendering the original artwork unknown.