Black hole cosmology suggests that the Milky Way and every other observable galaxy in our universe is contained within a black hole that formed in another, much larger, universe.

The theory challenges many fundamental models of the cosmos, including the idea that the Big Bang was the beginning of the universe.

It also provides the possibility that black holes within our own universe may be the boundaries to other universes, opening up a potential scenario for a multiverse.

Mine blown 🤯

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[–] Fuhgeddaboutit@sopuli.xyz 15 points 23 hours ago* (last edited 23 hours ago) (2 children)

Black hole cosmology suggests that the Milky Way and every other observable galaxy in our universe is contained within a black hole that formed in another, much larger, universe.

Forgive my dumb question. Why would we see the universe as expanding then?

Since

Black holes are incredibly dense objects where immense gravity crushes matter into an infinitesimally small point called a singularity

[–] spicebag@lemm.ee 13 points 17 hours ago

There's debate on the existence of singularities and certain shapes of the universe can give the impression of accelerating expansion

[–] Sylvartas@lemmy.dbzer0.com 12 points 22 hours ago

Well, they still have a mass (and some form of "size") iirc, that can expand as they absorb things