The night sky is dark because the universe is neither static nor infinitely old.
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Q16: The cosmic background radiation comes from the
Q17: Voids are
A) regions in an elliptical galaxy
Q18: The resolution of Olbers' paradox suggests that
Q19: The assumption of isotropy states that
A) the
Q20: During the first moments of the big
Q22: One explanation of the dark sky Olber's
Q23: Homogeneity is the assumption that the universe
Q24: How old is the universe since the
Q25: What is the fate of an open
Q26: Where did the cosmic microwave background (CMB)come
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