Don’t know why I expected any rational thought in this thread when I clicked it. Is there really nothing better to do with your time than mock an honest question on APC?
The only credible multi sourced reports that I have seen go back to the still unexplained foo fighters of WWII.
https://www.airspacemag.com/history-of-flight/what-were-mysterious-foo-fighters-sighted-ww2-night-flyers-180959847/