Eyewitness Dave Surber investigates a mysterious monolith possibly left behind by aliens, in this bonus clip from Season 2, "Mutant Mummy & Alien Monolith." Watch all new episodes of The Proof Is Out There, Fridays at 10/9c, and stay up to date on all of your favorite The HISTORY Channel shows ...

While ufology continues to be a fringe science about flying saucers, a subject of speculation, Dr. Michael P. Masters, professor of biological anthropology and author of ‘Identified Flying Object: A Multidisciplinary Approach to the UFO Phenomenon’, has his own hypothesis of what might be out ...