No, the Milky Way galaxy is not the only galaxy. There are billions of galaxies in the observable universe, each containing millions or billions of stars. The Andromeda galaxy is the closest galaxy to the Milky Way, and there are many other galaxies within our local group of galaxies. Beyond that, there are billions of other galaxies in the visible universe.
No, the Milky Way is not the only galaxy in the universe. There are billions of galaxies in the universe, each containing billions to trillions of stars. The Milky Way is just one of many galaxies in the vast cosmos.
