Olber's Paradox is solved in part by the fact that the universe is neither infinitely large nor infinitely old.

Question

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Olber's Paradox proposes that if the universe were infinite in size and age, every line of sight from Earth would eventually end on the surface of a star and the entire night sky would be as bright as the surface of the Sun. However, this paradox is resolved in part by the finite size and age of the universe. As the universe is not infinitely old, light from some distant stars has not yet had sufficient time to reach Earth, and as it is not infinitely large, not every line of sight ends on a star.

Olber's Paradox Is Solved in Part by the Fact That