this pic looks like an ordinary plane, but it seems whoever/whatever behind such crafts sometimes use optical illusions, making them appear as just planes to our naked eye. i once literally saw a plane "freezing" howering in midair during daytime, so i took a photo of it and guess what? this is what the photo showed instead at the upper mid, no booze or any hallucinogens involved either, take it as you want
Pirate