I had a look at the website of the scientist responsible: http://faculty.washington.edu/jcramer/BBSound_2013.html From what I gather, Professor John Cramer has analysed the data that was used to produce the visual image of the Cosmic background radiation and turned it instead into an audio file. It's a bit of a stretch to call it the sound of the Big Bang, even the Professor puts it in quotation marks, as he says, he had to increase the frequency by 26 orders of magnitude. Basically, there were 'vibrations' in the early universe that can be depicted as sound, but since there was no air, much less ears, it's not sound as we recognise it.David Handeye wrote:I don't know if Big Bang was or not an explosion, but recently I have heard and read about studies and discovers of the "sound" of the primordial explosion, the Big Bang. These scientists affirm to have heard in such a far and remote regions of universe the sound of this explosion, right a bang. So are they telling us only a lot of lies? I'm asking, as I am not a scientist.
The name 'Big Bang' is misleading, but it has stuck. The Big Expansion isn't as snappy, but it's probably closer to what scientists mean.