Beyond Our Universe: “Worlds Utterly Unlike Anything We Can Imagine” (Weekend Feature)

The Multiverse

 

Is the universe we see – stars, moons, planets, clusters of galaxies – a small, accidental tip of an infinite cosmic iceberg? During the epoch of inflation, thought to have been triggered by the phase transition that marked the end of the grand unification at approximately 10^−36 seconds after the Big Bang, the accelerating expansion of space was far more dramatic than in today’s universe. Inflation lasted for only 10^-32 seconds, but the universe expanded at an absolutely staggering rate, increasing in size by a factor of 10^26. During this period, no objects – even two elementary particles – remained close enough to one another for long enough to interact. (more…)

Quantum Birth of the Universe –Becomes a Multiverse, an Eternally Growing Fractal

 

The Multiverse

 

“In some pockets of space, far beyond the limits of our observations,” wrote cosmologist Dan Hooper at the University of Chicago in an email to The Daily Galaxy, referring to the theory of eternal inflation and the inflationary multiverse: “the laws of physics could be very different from those we find in our local universe. Different forms of matter could exist, which experience different kinds of forces. In this sense, what we call ‘the laws of physics’, instead of being a universal fact of nature, could be an environmental fact, which varies from place to place, or from time to time.”

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Terra Incognita -What Lies Beyond the Observable Universe?

Hubble Ultra Deep Field

 

It’s possible that the universe isn’t uniform past what we can see, and conditions are wildly different from place to place, says Caltech astrophysicist Sean Carroll. “That possibility is the cosmological multiverse. We don’t know if there is a multiverse in this sense, but since we can’t actually see one way or another, it’s wise to keep an open mind.”

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Incredibly Weird Dark Energy -“Its Source Unknown, Location Unknown, Physics Unknown”

 

Dark Energy

 

“Dark energy is incredibly strange, but actually it makes sense to me that it went unnoticed,” said Noble Prize winning physicist Adam Riess in an interview. “I have absolutely no clue what dark energy is. Dark energy appears strong enough to push the entire universe – yet its source is unknown, its location is unknown and its physics are highly speculative.”

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