Okay kiddo, so you know what atoms are made of, right? They have a nucleus in the middle with protons and neutrons, and then electrons flying around the outside.
Well, a hypernucleus is kind of like an atom, but instead of having just protons and neutrons in the nucleus, it also has something called a hyperon. A hyperon is like a special kind of particle that is really rare and doesn't usually hang out with protons and neutrons.
So when scientists study hypernuclei, they are basically looking at these weird atoms with hyperons in the nucleus. They want to learn more about how hyperons interact with protons and neutrons, and what kind of things they can do.
It's kind of like exploring a whole new world that we didn't even know existed before! And by learning about hypernuclei, we can understand more about the basic building blocks of matter in the universe.