Olbers' paradox is an apparently simple question,but its resolution suggests that the universe is finite in age.What is the question?
A)What would it be like to ride on a beam of light?
B)Can we measure the position and momentum of an electron at the same time?
C)How does the Sun produce energy?
D)Why is the sky dark at night?
E)How many stars are in the universe?

Question

Quizplus · Accepted Answer

Olbers' paradox asks why the night sky is dark if the universe is infinite and filled with stars. If the universe were infinite and eternal, every line of sight would eventually end on a star, and thus the sky would be bright instead of dark. However, the solution to the paradox is that the universe is not infinite and has a finite age, meaning that some of the starlight has not had enough time to reach us yet, and thus the sky appears dark at night.

Olbers' Paradox Is an Apparently Simple Question,but Its Resolution Suggests