Time Travel Machine Used by Aliens (S4) | Ancient Aliens | The UnXplained Zone

A theoretical physicist at the University of Connecticut shares his prototype for a large time machine that extraterrestrials could've also used, in this clip from Season 4, Episode 9, “The Time Travelers.“ #AncientAliens Subscribe for more from Ancient Aliens and other great shows: From mysterious and supernatural occurrences, to extraordinary stories and investigations of the unknown, The UnXplained Zone is your portal to the paranormal. Follow the evidence, uncover the cover-ups, and discover what lies behind mankind's greatest mysteries and the world's strangest phenomenons. Welcome to the UnXplained Zone.