Have you every seen an unidentified flying object?
A UFO of course is just an aerial phenomenon that you can't explain (hence unidentified), & probably not at all connected to little green men from Mars.
So what are UFOs and have you ever seen something in the sky that you couldn't explain?
In the past many people have mistaken aircraft, weather balloons, silver party balloons, and even bright planets in the night sky as UFOs, but of course under scrutiny they usually have a rational & logical explanation. More recently drones have been mistaken as UFOs.
Then in the last month we've had video clips released from the Pentagon actually showing real UFOs filmed darting around at amazing speeds & doing manouvers that would be impossible for any manned craft to do. The G forces would be so powerful as to kill any human occupants, so what was witnessed by the US Navy pilots and the aircraft carrier radar?
Are UFOs terrestrial or extraterrestrial craft?
Illusions or really there, imagination or reality?
What are UFOs !