The Milky Way is a galaxy full of planets that host sentient and intelligent life. There are about 1,000,000 sapient species in the Milky Way.
The Milky Way along with the Andromeda and about 50 dwarf Galaxies is a part of the galaxy group known as the "Local Group".
Ben Tennyson and his team live in this galaxy on the planet Earth located in the Orion Arm. Most of his adventures take place here.