A UFO almost caused a mid-air collision in the skies over Denver and the pilot of the plane was caught on tape saying that something went the other way. The pilot plane was piloting a private plane and didn’t get to describe what he saw.
Since the man didn’t get a good look at what he saw there is speculation that what he saw was a large bird, which would cause the pilot alarm to go off. There is also a possibility that it was a remote controlled aircraft, which are used by hobbyists.
Scroll down to hear the pilot talk about what happened when he saw the UFO pass him in the air.