The phrase
"goldilocks zone" refers to a place or condition that is just right for something to happen. It comes from the story of Goldilocks and the Three Bears, where Goldilocks finds a bowl of porridge that is neither too hot nor too cold, but just the right temperature. Similarly, the
goldilocks zone in science refers to the habitable zone around a star where conditions are neither too hot nor too cold to support life.
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