* The Milky Way is a galaxy. It's a massive collection of stars, gas, dust, and planets.

* Galaxies don't contain other galaxies. Galaxies are the largest known structures held together by gravity.

So, the Milky Way doesn't contain other galaxies. It does, however, have:

* Billions of stars: Our galaxy is estimated to have between 100 and 400 billion stars.

* Other celestial objects: Including planets, moons, asteroids, comets, and nebulae.

Let me know if you have other questions about the Milky Way or galaxies!