* Local Group: This is a collection of about 54 galaxies, including the Milky Way and our nearest large neighbor, Andromeda.
* Virgo Supercluster: This is a massive collection of galaxy groups and clusters, including the Local Group. It contains thousands of galaxies.
* Laniakea Supercluster: This is an even larger structure, containing the Virgo Supercluster and many others. It's a vast region of galaxies stretching over 500 million light-years.
* Observable Universe: This is the largest structure we can observe, limited by the speed of light. It's estimated to be around 93 billion light-years across.
Beyond our Observable Universe: There may be even larger structures that we can't see because their light hasn't had time to reach us.
It's important to note that the universe is constantly expanding, so the size of these structures is constantly changing.
