The core is the absolute center of Deep Space. The core is a place where energy flows the most as it gets pulled into the black hole. This is why Celestials come to rebirth around the core. As this is the absolute center of Deep Space, Celestials have their secret base somewhere around the core.
Oblivion is a place inside the dark hole which is located at the core of Deep Space. This place is where the balance between life and death is maintained by the Angel of Rebirth.
Deep Space is already a magical place, Dimension 35c is no different as it gets many visitors trying to find powerful magical relics. Dimension 35c is a very dangerous place with little stability. Those who found their way in, may never find their way out. Anyone who travels to Dimension 35c better starts looking for the Omega Trees as they will need its powerful blessings in order to be able to continue and survive their journey.
Zarvis 6T is one of the most infamous planets in Deep Space as it's filled with deadly creatures, and gases that can quickly kill visitors to the planet. It once was a planet that was inhabited by primitive lifeforms, but chaose has resided after bandits tried to steal precious materials from Zarvis-6T. The planet is now a hive for vilains, bandits, bounty hunters and other schmuck.
Seilea is a planet mostly covered by ice. Lifeforms on this planet have evolved their brains exceptionally, because of the location and structure of Seilea. The planet is in peace and it has hardly any visitors as this planet is truly a maze underneath the surface as it's too cold to survive above.