Our universe might have originated from a black hole that
lies within another universe.
The idea centers on how matter and energy falling into a
black hole could in theory come out as a white hole in another universe. In such
a situation, both the black hole and the white hole are mouths of an
Einstein-Rosen bridge, which is also known as the wormhole.
With that in mind, physicist Nikodem Poplawski at Indiana University
conjectured that when a black hole forms upon the collapse of a dying star, a
universe is born at the same time from the white hole on the other side of the
wormhole.”Our universe could have itself formed from inside a black hole
existing inside another universe,” he said.
Although a black hole forming from the star size of our sun
would only be 2 miles wide, it does not mean that the universe that might originate
from the black hole would stay such small. He said that our universe was small
long time ago but it expanded and from the other side, one would not see our
expansion. He also noted that, if anyone survived a trip into a black hole and
emerged in another universe, it would be one trip. The event horizon of a black
hole is a boundary at which nothing can escape.
In theory, black holes do lose mass; however as Hawking
radiation – particles that emerge from the vacuum right next to their event
horizons. Black holes that lose more mass than they gain are expected to shrink
and eventually vanish. This doesn't mean that the universe at the other end of
the black hole would cease to exist, Poplawski explained. “We would just be
disconnected from the other universe,” he said.
“If our Universe lies within another universe, the
prediction would be that our universe is closed,” said Poplawaski. If the
universe is closed, if one watches the stars, their light would be visible on
the opposite side of the sky. “If the universe is really big, the light from
those stars might not have had time to do that yet, but maybe at some point we
would see this,”
If our universe was born from a black hole, it would help
solve mystery of what came before Big Bang and whether our universe was closed,
flat or open. It would also help scientists avoid problems with singularities, or
infinitely small point with infinite density. In theory the universe was born
from singularity, and every black hole encloses a singularity. However singularities
are big headaches for theoretical physicist, since the laws of physics breaks
down around them. The notion of black holes as wormholes could explain certain
mysteries in modern cosmology, Poplawski said. For example, the big bang theory
says the universe started as singularity. But scientists have no satisfying
explanation for how such a singularity might have been formed in the fast
place. If our universe was birthed by a white hole instead of a singularity, it
would solve the problem of black hole singularity and also the big bang
singularity.
Nobody knows how the universe was formed, the beginning of
time, Are we being too over curious in studying what we can’t just understand,
like the black hole? Let hope, some point in time, our technology will be able
to take us close or even inside this mysteries of the universe.
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