Extraterrestrial means something that comes from outside our Earth. You know how you have a house and you sometimes visit your friend’s house? Well, Earth is like our house, and an extraterrestrial is like someone coming from a different house far away in the sky!
Picture the sky as a giant ocean. We live on a boat called Earth, and there are other boats floating far away that we can’t see. An extraterrestrial would be like a fish from another boat that swims over to visit us. They live in a different part of the ocean, but they are curious about our boat!
Think of the stars at night as tiny windows to other worlds. Just like you can look out your window and see your neighbor’s house, extraterrestrials might be looking out their windows and seeing us! They might live on a different planet or even in a different galaxy. So, extraterrestrial things are like our neighbors in the sky, who live far away but are part of the same big universe!