Top Secret UFO Projects: Declassified

After World War II, an explosion in reported UFO sightings prompts the US government to try and manage the public's growing fascination with them.

Did the US government launch a secret organization called MJ-12 to conceal the truth about UFO encounters? Some researchers certainly think so.

Some theorize that the US government keeps UFO incidents under wraps in order to reverse engineer sophisticated alien technology for its own purposes.

Internal leaks and external hacks reveal potentially major UFO intel held by governments. A man claims to have performed multiple alien autopsies.

Russia has had its share of alleged sightings and secrets, and some think nuclear arms are to blame. But not all unidentified objects come from above.

If aliens have come to Earth, how far back does their presence reach? What do they want with us? Is their intent to hurt, help or, indeed, save us?