Man-made aircraft.
Those are all man-made.
And that "UFO" you are so fascinated with is the TR-3B.
All UFOs are man-made.
Purpose mind-fucking and controlling the public.
All open-source solid facts.
Simple.
Yes, a good start is to dig on the TR-3B, Jack Parsons, Wernher VonBraun, Disney, and Operation Paperclip. That's a good place to begin your digs. Keep going and only stick to solid tangible facts. Woo-woo stories are controlled opposition to misguide you. Facts are solid. You'll also learn who is behind it and why they've been doing it. Enjoy.
Circle Back Jerks are an abomination.