Tag Archives: Big Bang

Gravitational waves discovery now officially dead

Posted on February 2, 2015 by

I tweeted this yesterday, but it deserves a blog entry: Gravitational waves discovery now officially dead : Nature News & Comment. A team of astronomers that last year reported evidence for gravitational waves from the early Universe has now withdrawn the … Continue reading →

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Multiverse theories: “meta-cosmology”?

Posted on October 18, 2014 by

Marianne Freiberger reports on a discussion she had with Bernard Carr on whether or not multiverse theories are science.  He has a suggestion for how we should classify these theories. With the possibility for indirect evidence in the future, maybe we … Continue reading →

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Cosmic inflation appears to have shifted from settled science back to speculation

Posted on September 22, 2014 by

You can get background on what I’m talking about in this post here and here. Probably the best thing to do is let the experts weigh in on this. Planck team measurement consistent with our (Flauger et al.) estimates and … Continue reading →

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The size of the observable universe is complicated.

Posted on July 14, 2014 by

The radius of the observable universe is often stated to be 46 billion light years.  From a certain point of view, this is true, but I think it’s a bit of a misleading statement.  Occasionally you also see people say that … Continue reading →

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“The Universe Should Not Have Lasted for More than a Second”: The limitations of scientific theories

Posted on June 26, 2014 by

Stan Hummel called my attention to, and asked for my thoughts on this article: Big Bang Theory Challenged –“The Universe Should Not Have Lasted for More than a Second”. British cosmologists are puzzled: they predict that the universe should not have … Continue reading →

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The Big Bang’s Identity Crisis – The Nature of Reality

Posted on June 1, 2014 by

Think of the Big Bang, and you probably imagine a moment in time when matter, energy and space itself all burst into existence at once. Yet many astrophysicists now believe that the “Big Bang” was actually two distinct events: first … Continue reading →

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Growing doubt that gravitational waves were actually detected

Posted on May 31, 2014 by

Nature has an article up describing the problems with the BICEP2 results that are now being identified by various scientists.  It’s actually the second one I’ve seen them publish on this. The astronomers who this spring announced that they had … Continue reading →

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