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Could the universe be shaped like a saddle?

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Interesting thought:

We live in a lopsided universe: That has been a lesson that cosmologists have learned from examining the detailed structure of the radiation left over from the Big Bang. Now, two cosmologists show that the data are consistent with a Universe that is curved slightly, similarly to a saddle. If their model is correct, it would overturn the long-held belief that the cosmos is flat.

On a large scale, precision measurements of the cosmic microwave background (CMB) by NASA’s Wilkinson Microwave Anisotropy Probe provided the first hints of an asymmetry in 2004. Some experts wondered whether the finding was a systematic error that would be corrected when the NASA probe’s successor, the European Space Agency’s Planck spacecraft, mapped the CMB again with higher precision. But the Planck results, announced earlier this year, confirmed the anomaly.

This may not hold up, but it is more reasonable than a bunch of stuff we have heard recently.

Comments
Related note: William Lane Craig posts full Vilenkin e-mail (that was dishonestly) misrepresented by Krauss in their debate - Sept. 23, 2013 http://winteryknight.wordpress.com/2013/09/23/william-lane-craig-posts-full-text-of-vilenkin-e-mail-misrepresnted-by-lawrence-krauss/bornagain77
September 23, 2013
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"You know, the one where you implied that we could never know whether the Liddle and Cortes theory was true by juxtaposing a question that was not asked with the answer to one that was? Have you been subsequently persuaded that it may, after all, be possible to know whether the theory is true?" True Elizabeth? What is true? You can only said the model fit the actual data.Chesterton
September 23, 2013
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I can't imagine that News realized that two different stories were covering the same article -- that's the kind of thing that it would take a journalist to realize.Kantian Naturalist
September 22, 2013
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I'm not sure whether news has actually noticed that the two stories are on the same paper, or whether this OP is to make up for the weirdness in her reporting of the other one. Anyway, Nature seems to have done a better job than New Scientist in conveying the testability of the theory. Not that the New Scientist article actually gave any different impression to anyone who actually read it in full. I think it's fascinating, actually. Very exciting.Elizabeth B Liddle
September 22, 2013
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Two different stories on the same theory, but one is more reasonable than the other -- I love it!Kantian Naturalist
September 22, 2013
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Right. So what was your other "news" item on this paper all about? You know, the one where you implied that we could never know whether the Liddle and Cortes theory was true by juxtaposing a question that was not asked with the answer to one that was? Have you been subsequently persuaded that it may, after all, be possible to know whether the theory is true?Elizabeth B Liddle
September 22, 2013
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They will have to bring a lot more to the table than this to overturn a 'flat' universe: The curvature of the space time of the universe is 'flat' to at least 1 in 10^15 places of accuracy http://books.google.com/books?id=O_beAVEoR7sC&pg=PT88&lpg=PT88&dq#v=onepage&q&f=false Did the Universe Hyperinflate? – Hugh Ross – April 2010 Excerpt: Perfect geometric flatness is where the space-time surface of the universe exhibits zero curvature (see figure 3). Two meaningful measurements of the universe’s curvature parameter, ½k, exist. Analysis of the 5-year database from WMAP establishes that -0.0170 < ½k < 0.0068.4 Weak gravitational lensing of distant quasars by intervening galaxies places -0.031 < ½k < 0.009.5 Both measurements confirm the universe indeed manifests zero or very close to zero geometric curvature,,, http://www.reasons.org/did-universe-hyperinflate Job 38:4-5 “Where were you when I laid the earth’s foundation? Tell me, if you understand. Who marked off its dimensions? Surely you know! Who stretched a measuring line across it?bornagain77
September 22, 2013
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