local universe
The term "local universe" refers to the region of space that includes our galaxy, the Milky Way, and its nearby galaxies. This area is part of a larger structure known as the observable universe, which encompasses all the galaxies and cosmic phenomena we can see. The local universe is characterized by a relatively small scale, typically extending to about 10 to 20 million light-years from Earth.
Within the local universe, we find several prominent galaxies, including the Andromeda Galaxy and the Triangulum Galaxy. These galaxies are part of the Local Group, a collection of more than 50 galaxies bound by gravity. Studying the local universe helps astronomers understand the formation and evolution of galaxies, as well as the overall structure of the cosmos.