Black Holeball

Black Holeballs are celestial bodies that eat whatever they can, even light. Some say that passing through is time travel, or it leads to a Parallel Universeball, or simply everything it eats is compressed to a tiny ball - but nobody knows. If the Big Freeze theory is true, he will be the only one left, if you don't count Dark Energy. Nobody knows how many of them there are. When a Starball large enough blows up sometimes they become one.

There are even supermassive black holes, these black holes can be only found if you go to the centre of the galaxy. They are formed when many black holes merge together.

Sagittarius A*ball
Sagittarius A*ball is a bright black hole in the center of the Milky Wayball. It was discovered in 1974.