If the Universe is infinitely large, infinitely old, and expanding, the night sky should be bright. But in fact, it is not. What do we call this?

A. Olbers' paradox
B. Grand Unified Theory
C. the Neutrino Discrepancy
D. the Cosmological Principle
E. the Hubble Distance law


Answer: A

Physics & Space Science

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What will be an ideal response?

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