No, Jupiter is not outside the Milky Way galaxy. Jupiter is a planet in our solar system, and our solar system is located within the Milky Way galaxy.

To be more specific:

* Jupiter: A planet in our solar system.

* Solar System: A group of planets, moons, and other objects orbiting our Sun.

* Milky Way Galaxy: A vast collection of stars, planets, gas, and dust, containing billions of solar systems, including ours.

So, Jupiter is very much a part of the Milky Way galaxy.