Question R5 Q10 - NSB Regional 2016

Which of the following best explains how and why galaxies in the universe are moving relative to each other?

W) Most galaxies are moving away from each other because space is expanding

X) All galaxies are moving toward each other because space is contracting

Y) Most galaxies are moving away from each other because space is contracting

Z) All galaxies are moving toward each other because space is expanding

Science Bowl Question