Some Ancient Astronaut Theorists believe the Greek mythological story of Pandora's Box could really be describing the release of negative beings on the earth by extraterrestrials in this clip from Season 10, Episode 4, "Dark Forces". #AncientAliens
Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT

Find out more about the show and watch full episodes on our site:
http://po.st/AncientAliens

Check out exclusive HISTORY content:
History Newsletter: http://po.st/HistoryNewsletter
Website http://po.st/HistoryWeb
Facebook http://po.st/HistoryFacebook
Twitter http://po.st/HistoryTwitter

"Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years.

HISTORY® is the leading destination for awardwinning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s alloriginal programming slate features a roster of hit series, premium documentaries, and scripted event programming.