First Firmament

The First Firmament was the origin of all universes. It was the only and the last, the sole totality of all existences.

It was shattered during an ancient war between [[[Oa]]] and the [[[Celestial]]]s. Weapons were fired by a faction of rebellious Celestials called Aspirants, invented by Oa to damage those otherwise invulnerable titans. The [[[Godkiller]]] attacked reality at the quantum level. It was deployed by one Oan scientist against the [[[Source]]] itself. This resulted in the First Firmament collapsing and shuddering apart into billions of uncounted multiverses, each segregated from one another by unique P-brane frequencies.

The end of the First Firmament may have marked the end of all reality in all universes. Some have expressed concern that the Oan superweapon has made it impossible for the multiverse to ever sustain a 'big crunch' that would lead to another explosion of life from the [[[Source]]]. All reality may, in time, wither and flicker into nothingness instead.