A galaxy is known to be a type of system that will contain all of the solar systems. Aside from that, it will also hold a lot of stars. The solar system is composed of different planets, moons, and stars but they are usually all located on one side of the galaxy that will make it evident that all of the heavenly bodies that can be found there are part of one solar system.
Some people are confused about this, but the solar system is usually more specific and is considered to be smaller than the galaxy. There are so many things that can be seen in the galaxy, which still makes it very fascinating to learn for a lot of people.