Where is Earth?
A) at the exact center of an expanding universe, as shown by the universal expansion away from Earth in all directions
B) near the edge of an expanding universe, as shown by the microwave radiation coming to Earth from the edge
C) near but probably not right at the center of the universe, as shown by the fact that the edge is so far away from Earth
D) somewhere in an expanding universe but not in any special part of it

Question

Quizplus · Accepted Answer

The correct answer is D because the current understanding of cosmology, based on the principle of cosmological principle, suggests that the universe is homogeneous and isotropic on a large scale, meaning it looks the same in all directions and there is no special place in the universe. This implies that Earth is not in any special or central location in the universe.

Where Is Earth