The number of stars in the observable universe
A) is approximately equal to the population of the Earth at the turn of the 21st century
B) cannot be estimated
C) is approximately equal to the total number of sand grains on every beach on Earth
D) is infinitely large

Question

Quizplus · Accepted Answer

The estimated number of stars in the observable universe is around 10^22, which is approximately equal to the total number of sand grains on every beach on Earth.

The Number of Stars in the Observable Universe