Question

most scientists accept the big bang theory as the explanation for how the universe formed. which scientific evidence supports this theory?
galaxies are slowing down as they move away from the center of the universe.
most galaxies are moving toward each other from all directions.
most galaxies are moving away from all other galaxies in space.

Explanation:

The Big Bang theory states the universe is expanding. Evidence for this is most galaxies moving away from all other galaxies (redshift observation). The first option is incorrect (no center, and expansion is accelerating now, but initial evidence was galaxies moving apart). The second option is wrong as galaxies don't move toward each other on a large scale. The third option (most galaxies moving away from all others) matches the expansion evidence supporting Big Bang.

Answer:

The option: "Most galaxies are moving away from all other galaxies in space."