A second series of UFO documents has been released by the Pentagon. According to US media reports, the 222 declassified files contain reports of green spheres, flying saucers, and fiery balls of unknown origin. ''Unidentified anomalous phenomena have long fueled speculation,'

The Pentagon has released another batch of ‘UFO Files’—here are the most popular alien theories, explained.

The United States Department of War has announced the release of a second batch of declassified files relating to Unidentified Anomalous Phenomena (UAP), commonly referred to as…