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| At the center of spiral galaxy M81 is a supermassive black hole about 70 million times more massive than our sun. Image credit: NASA/CXC/Wisconsin/D.Pooley & CfA/A.Zezas;NASA/ESA/CfA/A.Zezas; NASA/JPL-Caltech/CfA/J.Huchra et al.; NASA/JPL-Caltech/CfA Rights information: http://1.usa.gov/Kwf96l |
(ISM) -- Our universe may exist inside a black hole. This may sound strange, but it could actually be the best explanation of how the universe began, and what we observe today. It's a theory that has been explored over the past few decades by a small group of physicists including myself.
Successful as it is, there are notable unsolved questions with the standard big bang theory, which suggests that the universe began as a seemingly impossible "singularity," an infinitely small point containing an infinitely high concentration of matter, expanding in size to what we observe today. The theory of inflation, a super-fast expansion of space proposed in recent decades, fills in many important details, such as why slight lumps in the concentration of matter in the early universe coalesced into large celestial bodies such as galaxies and clusters of galaxies.
But these theories leave major questions unresolved. For example: What started the big bang? What caused inflation to end? What is the source of the mysterious dark energy that is apparently causing the universe to speed up its expansion?
The idea that our universe is entirely contained within a black hole provides answers to these problems and many more. It eliminates the notion of physically impossible singularities in our universe. And it draws upon two central theories in physics: General Relativity and Quantum Mechanics (my adds, more at the link).
Inside Science:
A physicist presents a solution to present-day cosmic mysteries.
Nikodem Poplawski, PhD, Indiana University
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