Circumstellar habitable zone

The circumstellar habitable zone (or CHZ) is like a special area around a star where temperatures are just right for life to exist. It's not too hot and not too cold. The CHZ is sometimes called the "Goldilocks Zone" because it is "not too hot, and not too cold, but just right" for life. Inside this area, it's possible for planets and moons to keep water in liquid form, which is important for living things.