The milky way "composes" an infinitesimally small part of the universe. Should this question actually mean "What is the milky way composed of?", here is an answer:
The Milky Way is a galaxy and is therefore composed of many different celestial objects, including: stars, planets, comets, asteroids, cosmic dust and dark energy (hypothetically), among other things.
local group
The Milky Way and 16 other galaxies compose the local group.
There no milky way in sky there is only milky way galaxy
The Milky Way galaxy is.... called the Milky Way Galaxy
The galaxy that contains Earth and the rest of the Solar system is the Milky Way galaxy.
We all live in the same Universe.
the milky way is just the name of our galaxy, there isn't really a "milky way"
Zero. We are in it
the milky way is a galaxy, there are billions of stars in the milky way galaxy
Well, we are in the Milky Way.
Yes. We are in the milky way galaxy
The Milky way.