Black hole-verse

The black hole-verses are basically just ultramassive black holes but they're way more deep until you get to the singularities, which are actually Protoverses. They're also 10 ly in diameter and have a mass of about 16 trillion solar masses. Even though they're very massive (several galaxies of mass), their density is very low.
Category:Black Hole
Category:Verse?
Category:Verse
Category:Class 0
Category:Navigable