"Historically, people have thought that the center of the universe was the Earth, the sun, or the Milky Way galaxy. The geocentric model, developed in 4th century BC Greece, proposed that the Earth was at the center of the universe. In the 16th century, Nicolaus Copernicus developed the heliocentric model, which proposed that the sun was at the center.
Jan 2024 - Texas A&M University -
Q: Where is the center of the universe (where the Big Bang occurred) and where is its edge?
A: Although it's hard to imagine, there is no center — or edge — to our cosmos.
As counterintuitive as it may seem, the universe has no center, and it has no boundary."
Our teeny tiny little galaxy does have a center and a boundary though.