UFO's: Investigating the Unknown MEGA EPISODE | Secret Programs and Close Encounters | Nat Geo

S1, E1-E5 | UFOS: Investigating the Unknown 0:00:01 Secret Pentagon Program The truth behind the U.S. Government’s secret Pentagon program on UAPs, Unidentified Aerial Phenomena, otherwise known as UFOs, is exposed. 0:41:59 Giant UFO in Texas Astronomer J. Allen Hynek leads Project Blue Book’s scientific efforts to catalog and investigate civilian reports of UFOs. 1:23:57 Close Encounters at Nuclear Bases The malfunction of U.S. nuclear missiles after a UFO encounter leaves the U.S. defenseless. Three former Air Force officers tell their story. 2:05:57 Citizens Take Charge Stories of near misses with UAPs in flight ignite a conversation about a serious threat in our skies not just in America, but around the world. 2:47:57 Government Breaks Silence In 2015 Navy pilots report having strange encounters with UFOs that have no wings, no cockpit, no exhaust, but somehow can fly with great agility. Explore the World with National Geographic subscriptions: h