Question

Imagine the universe is a solid ball with galaxy scattered all from the thinner to the edge supposed to galaxy stay the same size, but the ball gets bigger. What will happen to the distance between the galaxies?
A.) the distance between all the galaxies will increase throughout the ball
B.) the distances between only the galaxies on the surface of the ball will increase
C.) The Distances between the galaxies will change randomly depending on the galaxy motion
D.) the distance is between the galaxies near the center of the ball decrease

Answer 1

The scenario you've described resembles a common analogy used to explain the expansion of the universe, where galaxies are represented as points on the surface of an expanding balloon.

In this analogy, as the balloon expands (representing the universe), all points (representing galaxies) move away from each other. Therefore, the correct answer would be:

**A.) the distance between all the galaxies will increase throughout the ball.**

As the solid ball gets bigger, the distance between galaxies, irrespective of their positions (whether they are on the surface or elsewhere), will generally increase due to the overall expansion of the space itself.