3.5K views · 444 reactions | 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 | Facebook

20K views · 297 reactions | Join the renowned Philip Coppens, best known for his appearances on the History Channel's 'Ancient Aliens' series, as he delves into an unprecedented exploration of the Roswell Incident. Get ready to discover a whole new perspective on this enigmatic event, as we reveal the astonishing revelations that go beyond anything you've ever imagined. | Free Documentary | Facebook