Professor Kirchhof here to explain spacial physics in a nut shell.
Take four very, very strong rods. Place said rods in four different places to make a square, but place them trillions of miles apart. Attach very strong trampoline fabric to these four points, pull it tight. Take a bowling ball and set it anywhere on this fabric. The large indention around it represents the indention in the space - time continuum. Roll a marble to the side of this indention. One of two things will happen. It’ll curve and keep going in a different direction without slowing down much (assume there’s no friction) or it will curve and go in to orbit around the ball for a while. You’ve just demonstrated an asteroid veering off course or an asteroid turning int0 a moon.
Now, this was a planet on a two dimensional plain. Imagine these planets on a three dimensional plain — aka, trampoline fabric all around. It creates a gravitational field in all directions.
Let’s go back to our two dimensional plain. What happens if the fabric rips? What’s on the other side? No one knows. You’ve got yourself a miniature black hole. In a three dimensional environment, since it’s rip in all directions, it will suck things through to God knows where.
Ta - da, quantum spacial physics.

Ryan
P.S: Yes, I know the image is a bit awry.
