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Questions tagged [cosmic-microwave-background]

4
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3answers
130 views

cosmic-microwave-background - 2.7 degrees but does the Big Bang care?

The Big Bang is a proposed answer to the beginning of the universe, and the Cosmic Microwave Background or CMB is a central part of the evidence for it. Now suppose the measurement returned a ...
7
votes
3answers
2k views

Can we track matter through time by looking at different depths in space?

If we look back far enough we can see all the origins of the universe, so is it possible, even if not feasible, that we could trace the history of some matter as it moves through space-time? I want to ...
1
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1answer
63 views

Deep space radiation distribution

What frequency distribution law applies to a random point in deep space that is assumed to be far away from any particular source of radiation. Can it be expressed by some form of Plancks/Bose-...
2
votes
1answer
106 views

Scientific evidence against CMB originating from “Oort Soup”?

In this article (and references therein) the author claims that the Cosmic Background Radiation can be explained as black-body radiation originating from the cold bodies filling the interstellar space ...
0
votes
2answers
63 views

How much radiation would something need to output to sufficiently affect the CMB? [closed]

Let’s say that I had some device capable of outputting insane amounts of radiation, across the entire EM spectrum. If I wanted to affect the CMB to the point that, were Earth-based scientists to know ...
1
vote
1answer
73 views

How thick is the cosmic microwave background, including the part we cannot see within the observable universe?

What I want to know is how thick the observable universe is from the point of the cosmic microwave background and beyond. It appears the thickness of the cosmic microwave background itself (the part ...