Question

Which piece of evidence helps prove the Big Bang Theory?

Planets revolve around the sun.

All the galaxies appear to be moving away from each other.

The universe does not look like it is changing when we observe the sky.

Earth is located in the Milky Way galaxy.

Answer 1

All galaxies appear to be moving away from each other. It’s because the Big Bang was an explosion, which caused everything to be spread out everywhere. So now, they’re constantly moving away from each other.

Answer 2

All the galaxies appear to be moving away from each other. This proves the universe is expanding which supports the theory of a Big Bang explosion.