Why is Earth called the “Goldilocks Planet?”

Earth is referred to as the "Goldilocks Planet" because it is not too hot, not too cold, but just right for supporting life as we know it. This is due to its unique position in the habitable zone of our solar system, where the temperature is ideal for liquid water to exist on the surface. The presence of liquid water is essential for life, making Earth a perfect "just right" environment for a wide variety of organisms to thrive.