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This article was the subject of a Wiki Education Foundation-supported course assignment, between 14 January 2020 and 7 May 2020. Further details are available on the course page. Student editor(s): Lifeonmars1971, ClassStudent20.
It was completely uncited, speculation by a single wikipedian, not to mention erroneous - the cosmic "noise" is not sound. All sorts of EM radiation permeates everything. Just because the term "noise" is derived from having parallels with aural cacophony doesn't mean it has anything at all to do with "Aum". One might just as easily claim this invisible thing permeating everything is "Chi" or the "Holy Spirit". Unigolyn (talk) 08:48, 1 August 2009 (UTC)[reply]
I'm contributing to this article significantly for my science writing class at UWEC. I will be adding sub-sections, such as history, sources of cosmic noise, etc. This article was flagged as too short, so that is why I'm deciding to add to it.
Please add that: extra noise/particles from the void itself. And these generated particles are related to the Hubble function which evolves with time and it's not a constant.