The Pentagon has pulled back the curtain on its latest cache of declassified files, offering a chilling glimpse into a world of unexplained aerial phenomena and historical encounters that have long been hidden behind government classification.

The Pentagon on Friday released a new batch of documents and images related to UFOs, the fifth disclosure in recent months about the strange encounters.

The Pentagon released 41 new UFO documents, images and videos, the fifth batch of records made public this year.