Ask Ethan: How far is the edge of the Universe from the farthest galaxy? | by Ethan Siegel | Starts With A Bang! | Medium
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How Big Was the Source of the Cosmic Microwave Background Radiation 13.7 Billion Years in the Past? – National Radio Astronomy Observatory
data analysis - Does the cosmic microwave background change over time? - Astronomy Stack Exchange
Lecture 31: The Cosmic Microwave Background Radiation
CMBR
