Only because space isn't a vacuum that can be navigated. This isn't a planet. And stars and the sun, are not giant, they are small.

And flying vehicle that we are not told what it is, is just that, unidentified. It could come from all the potentially billions of miles of land beyond our continents. Who's to say the land ever ends? Easily, civilizations outside of this perverted chamber of experiments and other retards shit, might have a normal life, where technology is allowed to flourish because science there isn't corrupt and fake as history