The new files include witness statements and drawings after alleged Skinwalker sightings on a ranch in Utah.

Mysterious black triangle objects speeding up to 1,800 miles per hour without vapor trails were spotted over secret US ...

Some UFO cases remain difficult to explain, but that is only the beginning of the scientific question. The evidence needed to ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

An eerie sighting over Washington DC has sparked claims that alien craft are hiding in America's skies.

Mysterious black triangle objects speeding up to 2,900km per hour without vapour trails were spotted over secret US military bases on at least three separate occasions over the past year, a newly ...