UFOs: The Lost Evidence, Area 52

Few have ever heard of the top-secret base in the deserts of Utah known as Area 52, but reports of UFOs have convinced people that the US military is keeping secrets.

For decades, extraterrestrial research has been directed to the skies - but researchers believe that UFOs may also be inhabiting our oceans.

When it comes to identifying mysterious objects in our skies, few people are more qualified than pilots and astronauts - but are sightings common?

Uncover new evidence pointing to the possibility that ancient man was visited by extraterrestrials, influencing architecture, art and more.

From the lore and history of ancient Egypt to the myths of Native Americans, mankind's past is riddled with the evidence of UFOs.

Many believe that extraterrestrial secrets are not just limited to the military - so could deathbed confessions provide evidence of the existence of UFOs?