I've heard it said before that the satanists' "black sun" is representative of Saturn. I've also heard Nibiru and other such theories, but I think those other theories are just disinfo. I'm pretty convinced it's Saturn.
Did you know that most stars are actually binary star systems (two stars we see as one in the night sky).?
Did you know that if not for our own sun, around which Jupiter and Saturn revolve, both Saturn and Jupiter would be considered "small dark suns" in their own right? Just consider how HUGE they both are in comparison to Earth.
Did you know that Saturn radiates more energy that it receives from the Sun, and that its interior temperature is actually hotter than the surface of the sun?
Some think Earth was once a satellite of Saturn. Some think Saturn was a sun that went nova, that it was once much bigger and brighter. Many ancient civilizations refer to Saturn as a sun. Which is odd, since the naked eye doesn't reveal it to be more spectacular that other points of light in the sky. Why do they all call it a sun?
Unless it was. And the satanists know something about Saturn that they want to use against humanity.
That's my theory at the moment anyhow.