Before our modern light pollution, something called the "Milkyway" was visibble in the night sky.
it wasn't just a name given to an object visible in the night sky, it was descriptive. "milky" being synonimous with "cloudy" - way, because it stretched across the night sky.
before light pollution, you could see the gasious disk of our spiral galaxy.
what you seen in this video is all that is left of the once visible clouds that were visible in outer space.