Henry Tye and brane-worlds. Provided In a two-dimensional representation of the brane-inflation scenario, two nearby branes, each itself inflating, are drawn together and annihilate, creating a mass of subatomic particles and energy that eventually coalesces into our universe, driven to expand by the tremendous release of energy from the annihilation. Theory predicts that the process created huge cosmic strings that exist in dimensions outside our three that might be observed by new gravity-wave detectors.
Imagine little flat people living on the surface of a piece of paper. Just the surface: their world is not even as thick as the paper, with no vertical dimension at all. Now you're ready for brane-world theory, which proposes that our three-dimensional universe lies inside higher spatial dimensions, and we are no more aware of them than those flat people are of our third dimension. The good news about string theory is that it finally reconciles quantum mechanics with Einsteinian relativity. Does Our Universe Have an Edge? By Christy SuEpoch Times Staff Created: July 22, 2011 Last Updated: July 22, 2011 YouTube screenshot depicting the universe as a three-dimensional dodecahedron, ie it may have 12 sides, like a cosmic soccer ball.
(The Epoch Times) Einstein hypothesized that the universe is like a flat sheet that runs on forever, deformed by matter such as stars and galaxies. However, scientists continue to question whether the universe really is infinite. The further away a galaxy or star is from Earth, the older it is. This space is filled with gas and plasma so hot that light cannot pass through, forming a layer of cosmic microwave background radiation that is separating us from a possible boundary of the universe. But regardless of our limited ability to research the space beyond, cosmologists use logic to reason that our universe is finite. According to the big bang theory, the universe was once a small condensed ball of energy. So if the universe really is finite, what would it be like?
Hologram. Imprint of another universe. IN AUGUST, radio astronomers announced that they had found an enormous hole in the universe. Nearly a billion light years across, the void lies in the constellation Eridanus and has far fewer stars, gas and galaxies than usual. It is bigger than anyone imagined possible and is beyond the present understanding of cosmology. What could cause such a gaping hole?
One team of physicists has a breathtaking explanation: "It is the unmistakable imprint of another universe beyond the edge of our own," says Laura Mersini-Houghton of the University of North Carolina at Chapel Hill. It is a staggering claim. If Mersini-Houghton's team is right, the giant void is the first experimental evidence for another universe. Dark flow. Something strange appears to be tugging a 'dark flow' of galaxies across the universe. is this evidence that parallel universes really exist?
SYDNEY: Astronomers have found the best evidence yet for the weird idea that our universe is one of many in the ‘multiverse’. What’s more, these parallel universes seem to be exerting a strange force on our own, causing galaxy clusters to stream across space towards the edge of the known universe. The new evidence comes from studies of ‘bumps and wiggles’ in the temperature of the cosmic background radiation (CMB), the leftover afterglow of the Big Bang. Dark flow U.S. cosmologist Sasha Kashlinsky of the Goddard Space Flight Centre in Greenbelt, Maryland, and co-workers measured slight changes in the CMB using NASA’s Wilkinson Microwave Anisotropy Probe (WMAP).
Slight deviations in the general expansion of the universe reveal the speed and direction of clusters of galaxies. Best evidence for the multiverse Fits the data. Extra dimensions, parallel universes. Hidden Space Dimensions May Permit Parallel Universes, Explain Cosmic Mysteries By Tom Siegfried / The Dallas Morning News Hidden space dimensions may permit parallel universes, explain cosmic mysteries Imagine a mansion with a secret room - the perfect setting for a mystery. Now imagine that the room is vastly bigger than the mansion itself - and contains more mansions.
That would make the mystery pretty bizarre. But it's very much like a story that many scientists are beginning to tell about the universe. In what amounts to a real-life episode of The Twilight Zone, physicists have realized that nature may be concealing extra dimensions - not of sight or sound, but of space itself. If so, the known universe may be just one of many "mansions" residing in the secret room - space's hidden dimensions.
"It's just really frighteningly weird," says cosmologist Rocky Kolb. Brane cosmology. Brane cosmology refers to several theories in particle physics and cosmology related to string theory, superstring theory and M-theory. Brane and bulk[edit] The central idea is that the visible, four-dimensional universe is restricted to a brane inside a higher-dimensional space, called the "bulk" (also known as "hyperspace"). If the additional dimensions are compact, then the observed universe contains the extra dimensions, and then no reference to the bulk is appropriate. In the bulk model, at least some of the extra dimensions are extensive (possibly infinite), and other branes may be moving through this bulk. Interactions with the bulk, and possibly with other branes, can influence our brane and thus introduce effects not seen in more standard cosmological models.
Why gravity is weak and the cosmological constant is small[edit] Models of brane cosmology[edit] One of the earliest documented attempts to apply brane cosmology as part of a conceptual theory is dated to 1983.[5] Warped brains: brane worlds and parallel universes.