Question

if universe is expanding then milkyway and Andromeda are coming closer​

Answer 1

Explanation:

In the 1920's, Edwin Hubble and others observed that most galaxies appear to be rushing away from us, which led to the discovery that the Universe is expanding. Andromeda is an exception to the rule, however, and is moving toward the Milky Way at about 250,000 miles per hour.

Answer 2

Yes, according to the group of scientists, the Milky Way and Andromeda galaxies are coming closer and after 4 billion years from now, they will collide with each other.