Nick Pope once ran the British government’s UFO desk at the Ministry of Defence, and has since written a number of books on UFOs, including Open Skies, Closed Minds and The Uninvited.

1. Rendlesham Forest Incident, December 1980 – UFO landing.

2. The Belgian Wave, March 1990 – UFO tracked on radar; F-16 fighters launched in attempted intercept.

3. The Cosford Incident, March 1993 – Direct overflight of two RAF bases by large triangular UFO.

4. RAF Lakenheath/RAF Bentwaters, August 1956 – Radar/visual case.

5. Manchester Airport, 1995 – Near-miss between UFO and civil aircraft.

6. Captain Zaghetti’s Sighting, 1991 – Near-miss between UFO and civil aircraft.

7. Pitlochry Photograph, 1990 – Diamond-shaped UFO in daylight; MoD technical analysis finds no evidence of fakery.

8. Iranian Intercept, 1976. F-4 Phantom jets chase UFOs.

9. North Sea Overtake, 1990 – RAF Tornados overtaken by UFO; other sightings and radar detections in Europe.

10. Captain Graham Sheppard, 1967 – Two radar/visual sightings.