The history of UFO sightings in North America goes back nearly 80 years. Explore the timeline of some of the most famous sightings and listen to testimonials from witnesses and the experts who dedicate their careers into uncovering the mysteries behind them. Solve the unknown in the brand new series, UFOs: Investigating The Unknown, Tuesdays at 8pm on National Geographic UK. | National Geographic UK

127K views · 4.1K reactions | 5 times UFO caught on camera !! ufo spotted in real life !! Join group watch more: Mysterious Aliens & UFO Disclosure ✔ | UFO Secret | Facebook

1.1M views · 8.3K reactions | #ufos #aliens #ufo #video #ovnis #secret #alien #space #fly | Find UFO | Facebook

199 reactions · 24 shares | 1997 RARE INTERVIEW WITH BOB LAZAR - PART 1 CREDIT TO - TOM VERNON UAP @TOMVERNONUAP #documentary #boblazar #interview #sphere #johnboyscreepycontent416 #EXTRATERRESTRIAL #aliens #ufos #fyp #viralvideo #technology #tomvernonuap #tiktokviral #facebook #instagram | Sylvester Roark | Facebook

60K views · 1.2K reactions | This rare 1997 interview with Physicist Bob Lazar, the Whistle-blower who claimed he worked on reverse engineering alien spacecraft, at S-4 near Area 51. | Who's Who In The Cosmic Zoo? | Facebook