A BOEING 747 captain with some 9,500 hours of flight time at controls has told of his bizarre encounters with UFOs while taking to the skies.
Christiaan van Heijst explained he has witnessed objects which appear to exceed all known technology as they appeared to hit hypersonic speeds of up to 23,000mph.
The 39-year-old, from The Netherlands, is a respected airman and an an award-winning aerial photographer – and yet he has seen things he cannot explain.
UFOs are traditionally a highly stigmatised topic – often being dismissed off hand as nothing beyond conspiracy theories or something for the world of cranks.
But in recent years the conversation has moved, with even the US government confessing their are things in the sky which they as of yet cannot or will not publicly identify.
Only a few years ago this could have cost him his job.
