Black Holes: The Strangest Things in the Universe
Black holes, to put it frankly, are abominations. A select few of them are even the largest things in our universe. They are so big, in fact, that they bend the rules of space and time.
For a basic understanding of them, we need to understand how large objects in space work. When there is an object with an extremely high mass, our sun, for instance, it bends space in a way that causes other objects around it to fall into orbit. With a black hole, everything that orbits it slowly enters a place in the black hole called the event horizon: this is the border where anything that enters can not get out. That is why the middle of a black hole looks completely dark: no light can escape the empty void.