Okay kiddo, have you ever played with slime? You know how when you mix it really well, it becomes this sticky, stretchy substance that you can mold into different shapes? Well, Glueballs are kinda like the 3D version of slime!
In science, everything around us is made up of tiny things called atoms. These atoms can stick together to form something called a molecule. A bunch of molecules can stick together to form a macroscopic object like a chair, a book, or even your body!
Sometimes, there are particles that are made up of only gluons which are tiny subatomic particles that are responsible for holding the nuclei in atoms together. Gluons can stick to each other and create a glueball, which is a tiny little clump of just glue.
The strange thing about glueballs is that although they are made up of all these sticky glue-like particles, they actually refuse to stick to anything else! Unlike molecules or atoms that can stick to other substances, glueballs are pretty much loners and prefer to stick with their own kind.
Scientists are still trying to figure out more about these little guys, but they are studying them to learn more about the basic building blocks of our universe. Who knew glue could be so fascinating!