Maturin (Dark Tower) Ok let's start With the misconceptions about the cosmological structure of the dark tower such as the worlds the dimensions and universes
On the face of the value the worlds are the smallest of the 3 being contained inside dimensions that are Placed inside universes:
Also keep in mind these worlds aren't Planets but realities as a whole also worlds view each other as fiction
So these worlds can't be Planets because they contain stars and nebulas which are referred as stories in the talisman we see these "worlds" are contains within dimensions
"In world upon world—in worlds strung side by side in multiple dimensions throughout infinity—evils shrivel and disperse: despots choke to death on chicken bones; tyrants fall before assassins’ bullets, before the poisoned sweetmeats arrayed by their treacherous mistresses; hooded torturers collapse dying on bloody stone floors. Ty’s deed reverberates through the great, numberless string of universes, revenging evil as it spreads. Three worlds over from ours and in the great city there known as Londinorium, Turner Topham, for two decades a respected member of Parliament and for three a sadistic pedophile, bursts abruptly into flame as he strides along the crowded avenue known as Pick-a-Derry. Two worlds down, a nice-looking young welder named Freddy Garver from the Isle of Irse, another, less seasoned member of Topham’s clan, turns his torch upon his own left hand and incinerates every particle of flesh off his bones."
On the face of the value the worlds are the smallest of the 3 being contained inside dimensions that are Placed inside universes:
Also keep in mind these worlds aren't Planets but realities as a whole also worlds view each other as fiction
So these worlds can't be Planets because they contain stars and nebulas which are referred as stories in the talisman we see these "worlds" are contains within dimensions
"In world upon world—in worlds strung side by side in multiple dimensions throughout infinity—evils shrivel and disperse: despots choke to death on chicken bones; tyrants fall before assassins’ bullets, before the poisoned sweetmeats arrayed by their treacherous mistresses; hooded torturers collapse dying on bloody stone floors. Ty’s deed reverberates through the great, numberless string of universes, revenging evil as it spreads. Three worlds over from ours and in the great city there known as Londinorium, Turner Topham, for two decades a respected member of Parliament and for three a sadistic pedophile, bursts abruptly into flame as he strides along the crowded avenue known as Pick-a-Derry. Two worlds down, a nice-looking young welder named Freddy Garver from the Isle of Irse, another, less seasoned member of Topham’s clan, turns his torch upon his own left hand and incinerates every particle of flesh off his bones."