"There are two natural holes in this galaxy: White Hole and Black Hole. Before going into this, I will explain the basics first. There are many elements around us, and these same elements created this galaxy in the past.
"You might know about Space Disturbance, right? It's where the Space Element concentrate. The Spatial Gate itself is a Space Disturbance but in a smaller scale."
"So, the Black Hole is a Space Disturbance?" Alex squinted his eyes and stroked his chin.
"You can classify it as such, but I will explain this one first. When the Space Disturbance level has reached a certain level, it will materialize itself, turning into either a Black Hole or a White Hole. In fact, the planet we are in was created by the Element Disturbance as well.