A popular term for the habitable zone around a star where conditions are 'just right' for liquid water to exist on a planet's surface—not too hot and not too cold. Named after the fairy tale character who preferred things that were neither too extreme.
Whimsical name derived from the fairy tale 'Goldilocks and the Three Bears,' where the character seeks things that are 'just right.' The term became popular in astrobiology and exoplanet research in the 1990s as a more accessible way to describe the habitable zone concept.
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