Journey to the Black Hole {Part -2}

Welcome to the series of Journey to the Black Hole:- (Part - 2)

Now, take a look at the simulation of a Black Hole, with a galaxy millions of light years behind it.
The galaxy is not really in danger of the Black Hole's suck, but the light coming off of that galaxy certainly is.
Watch as the galaxy passes behind the Black Hole and it's light is contorted, twisted and distorted.

Simulation of Black Hole with a galaxy millions of light years behind

Now, here is really fun demonstration, what if the Earth were to orbit around a Black Hole.
Looking from the outside the Earth would look normal at first.
But as soon as it passed behind Black Hole, the Black Hole's gravitational field would warp the light reflecting off the Earth producing this.

Earth orbiting a Black Hole

For the sake of simplicity, let's jump into a simple Black Hole (one that doesn't have a charge, it isn't moving and also isn't already sucking off a bunch of matter, its just there on its own).
As we approach, the distortion of the sky grows greater and greater.
A larger and larger portion of our field of view looking forward into the Black Hole will be filled with darkness.
At this point where half of our field of view has been swallowed up in darkness, we have reached the Photon Sphere.

Photon Sphere

At this point, the light is not gonna necessarily get sucked into the Black Hole, but doesn't necessarily leave it either instead. At this magical point in space light photons can actually orbit the Black Hole.
If you were to stop here for a moment, and look to the side, you could theoretically see the back of your own head because light reflecting off the back of your head would travel all the way around the sphere of the Black Hole right back to your face.