Tag Archives: Gravitational wave

Gravitational waves discovery now officially dead

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 A team of astronomers that last year reported evidence for gravitational waves from the early Universe has now withdrawn the … Continue reading

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

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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BICEP2 team publishes results, backpedals on certainty

The BICEP2 team have officially published their results.  They had announced to much fanfare back in March, that they had detected primordial gravitational waves, and hence cosmic inflation.  But the results have increasingly been met with doubt, primarily centered on the possibility … Continue reading

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

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

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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xkcd: Cosmologist on a Tire Swing

A few years ago the “it’s senseless to ask what came before the big bang because there was no before” meme was hot.  I remember Stephen Hawking saying it in his documentary a year or two ago.  There now seems to be … Continue reading

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PHD Comics: Cosmic Inflation Explained

So, even though I already linked to two sources about cosmic inflation this week, this is good enough that I’m also going to throw it in.  It’s fascinating to me that the large scale structure of our universe is ultimately … Continue reading

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Primers on detecting primordial gravity waves and cosmic inflation

First, Minute Physics takes a shot at explaining what the BICEP2 team actually found and how it relates to gravitational waves.  I think I’m going to have to watch this a second time to pick up everything. And Ethan Siegel … Continue reading

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First Direct Evidence of Cosmic Inflation – SpaceRef

Wow!  There were lots of rumors about this over the weekend.  Turns out that, in this case, the rumors were spot on. Almost 14 billion years ago, the universe we inhabit burst into existence in an extraordinary event that initiated … Continue reading

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