Question

If the universe is expanding, are the galaxies becoming larger? Explain

Answer 1

No, galaxies are not expanding. As the universe expands the galaxies are getting farther apart, but the galaxies themselves are not expanding. Actually, the expansion is even larger scale than that. Clusters of galaxies are getting farther apart but the clusters themselves are not expanding. The Andromeda galaxy, which is the largest member of the local cluster of galaxies, is actually getting closer to the Milky Way and will collide with the Milky Way in the distant future.