Okay kiddo, so you know how people and animals have DNA in their cells that determines what they look like and how their bodies work? Well, scientists have found a way to add extra building blocks to this DNA code in a lab.
It's like having more alphabet letters than just A, C, G, and T. Now, you can have even more letters to make new words and sentences. This expanded genetic information system is like a new language for DNA.
Scientists are studying this because it could help create new life forms that can do things we can't even imagine! But they have to be very careful because they don't want to create anything harmful. It's like playing with very special Legos that can make new and exciting things, but you have to be careful not to make something dangerous or break it.