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

Question

Quizplus · Accepted Answer

Olbers' paradox asks why the night sky is dark if the universe is infinite in size and age, and contains an infinite number of stars evenly distributed throughout. If this were true, then the light from every star in the universe would eventually reach Earth, making the sky bright at night. However, since the sky is dark, it suggests that the universe is not infinite in age and the stars have not existed long enough for their light to reach us.

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