Question

Whag is Galaxy and Universe?​

Answer 1

Answer:

Our Sun is just one star among the hundreds of billions of stars in our Milky Way Galaxy. ... Galaxies come in many sizes. The Milky Way is big, but some galaxies, like our Andromeda Galaxy neighbor, are much larger. The universe is all of the galaxies – billions of them!

Answer 2

A system of millions or billions of stars,together with gas and dust held together by gravitational attraction is called Galaxy.

For universe,refer to the attachment.

hope it helps you...