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I have a question regarding the rate of cooling for the CMBR.

I understand that the rate of cooling is directly related to the rate of expansion of the universe, but I lack the mathematical prowess necessary to make any use of this.

I am specifically trying to determine an estimate of what the temperature of the CMBR would have been around 800 million years ago.

Thanks in advance,

~PhoenixKnight

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# What is the rate at which the CMBR is cooling?

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