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Keyword: alanguth

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  • Cosmic Inflation’s Five Great Predictions

    06/22/2015 1:20:00 PM PDT · by LibWhacker · 15 replies ^ | 6/17/15 | Ethan Siegel
    Cosmic Inflation’s Five Great Predictions A “speculative” theory no more; it’s had four of them confirmed. Image credit: Max Tegmark / Scientific American, by Alfred T. Kamajian. “Scientific ideas should be simple, explanatory, predictive. The inflationary multiverse as currently understood appears to have none of those properties.” -Paul Steinhardt, 2014 When we think about the Big Bang, we typically think about the origin of the Universe: the hot, dense, expanding state where everything came from. By noticing and measuring the fact that the Universe is expanding today — that the galaxies are getting farther apart from one another in all directions — we...
  • Detection of Waves in Space Buttresses Landmark Theory of Big Bang

    03/17/2014 8:46:48 AM PDT · by Seizethecarp · 80 replies
    New York Times ^ | March 17, 2014 | DENNIS OVERBYE
    On Monday, Dr. Guth’s starship came in. Radio astronomers reported that they had seen the beginning of the Big Bang, and that his hypothesis, known undramatically as inflation, looked right. Reaching back across 13.8 billion years to the first sliver of cosmic time with telescopes at the South Pole, a team of astronomers led by John M. Kovac of the Harvard-Smithsonian Center for Astrophysics detected ripples in the fabric of space-time — so-called gravitational waves — the signature of a universe being wrenched violently apart when it was roughly a trillionth of a trillionth of a trillionth of a second...
  • The Bill Arrives for Cosmology's Free Lunch (NASA Should Be Islam's PR Firm)

    01/20/2014 7:16:54 PM PST · by lbryce · 3 replies
    Evolutionary News and Views ^ | January 20, 2014 | Denyse O'Leary
    ID theorists say that information is the foundation of the universe. Others say matter is. Our choice of who to believe will shape our future. First, suppose the materialists are right. If materialism (naturalism) is simply true, because everything comes down to matter in the end, what future might we expect? Stephen Hawking insists in a recent interview that "Science will win." If we take his current non-realist views seriously, science as we have known it is finished and there is nothing to win. That doesn't mean, of course, that everything shuts down. Some projects will continue as if immortal...
  • The Growth of Inflation [On inflationary cosmology, string theory, and all that]

    12/11/2004 9:14:30 PM PST · by snarks_when_bored · 10 replies · 883+ views
    symmetry - dimensions of particle physics ^ | December 2004 / January 2005 | Davide Castelvecchi
    The Growth of Inflation Twenty-five years after Alan Guth turned cosmology on its head, what's the latest story of the universe's first moments? by Davide Castelvecchi Photo: Fred Ullrich It was a true Eureka moment if there ever was one. On the night of December 6, 1979, an obscure Stanford Linear Accelerator Center postdoc was up late, sweating over an even more obscure problem about particles called magnetic monopoles. Looking at his calculations the next day, the usually low-key Alan Guth annotated the words "SPECTACULAR REALIZATION" at the top of the page. Guth had discovered cosmic inflation, an idea which...