Essay
The Cosmic Microwave Background Radiation: The CMBR is one of the true observational bonanzas of 20ᵗʰ and 21ˢᵗ-century astronomy. Make as complete a list as possible of the various observations of the cosmic microwave background that have been used to confirm, challenge, and extend the Big Bang theory for the origin and evolution of the Universe.
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1. Penzias and Wilson's discovery in 196...View Answer
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