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Cosmic microwave background cmb radiation why is the

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Unformatted text preview: ves, gravitational lensing, the Bullet Cluster Olber’s paradox: why isn’t the universe infinitely bright? Cosmic Microwave Background (CMB) radiation: why is the CMB evidence for the Big Bang? What does its spectrum look like? (Blackbody) What happened when the universe was 300,000 years old that caused the CMB to “decouple” from the rest of the universe (i.e. become transparent)? (Answer: recombination—the universe cooled enoug...
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