Every black hole 'is a gateway to another universe' and we could be living in one

dailystar.co.uk:

entire Universes somewhere beyond our plane of existence.Polish theoretical physicist Nikodem Popławski thinks that those two exotic scientific phenomena could be connected.

Literally. READ MORE: 'Planet Nine' could be black hole hiding on solar system's edge, scientists believe Nikodem theorises that every black hole contains a brand-new universe.In fact, he tells the Daily Star, our entire universe could exist inside a black hole that in turn is part of another universe.Black holes are now thought to vary in size from very tiny – perhaps microscopic in size – to the supermassive monsters at the heart of galaxies.The black hole at the heart of the M87 galaxy is a whopping 24 billion miles across, for example, although its mass is thought to be around six and a half billion times that of over Sun.But whether they’re big or small, Nikodem told us, every one of them could have an entire Universe hidden inside.“A baby universe is … a separate, closed spacetime branch with its own timeline,” he explains.“It is bigger than the parent black hole because it is the other side of the event horizon.

It is like Tardis in Doctor Who. You enter the police box and you realise that you are in something bigger than the box”.While the existence of black holes was first suggested as long ago as 1783 by the English philosopher and mathematician John Michell, the concept only really became part of mainstream physics after Einstein published his theory of general relativity in the early 20th Century.Since then, physicists have been constantly refining their models of what such an exotic object could look like and how it might behave.“Following the [Einstein-Cartan] theory of gravity, every black hole produces a new, baby universe inside and.