The Pentagon on May 8 announced the release of "never-before-seen" files on unidentified aerial phenomena, or sightings of unidentified flying objects, at a new government website: war.gov/UFO.

The tranche of never-before-seen documents released by the Pentagon on UFOs includes descriptions of reported sightings - by civilians on Earth and by astronauts on the Moon.

The release features hundreds of documents and dozens of videos, including Apollo 11 transcripts and reports of objects performing impossible aerial maneuvers.