Galaxy group

A galaxy group is like a bunch of friends holding hands and playing together. Just like how you might have a best friend and a group of friends that you hang out with, galaxies also have their own groups.

Galaxies are big collections of stars, gas, and dust that stick together in space. Sometimes, a few galaxies come close to each other and their gravity makes them stick together. When this happens, it forms a galaxy group.

Just like how you and your friends might have your own little hangout spot, galaxy groups also have a spot where they hang out. This spot is usually in the middle of all the galaxies in the group and is called the center of mass. It's like the movie theater where you and your friends might meet up to watch a movie.

These galaxy groups can be small with just a few galaxies, or they can be really big with hundreds of galaxies. Some galaxy groups even have their own names, like the Virgo Cluster or the Local Group.

Just like how each friend in your group might have their own personality or things they like to do, each galaxy in a group will have its own features and characteristics. Some galaxies might be big, bright, and have lots of stars, while others might be small and dark with only a few stars.

Overall, a galaxy group is just a bunch of galaxies that stick together in space, kind of like how you and your friends might stick together in your own little group.