The term ‘Goldilocks Zone’, also known as the habitable zone, refers to the region around a star where conditions are just right for liquid water to exist on a planet's surface—neither too hot nor too cold. This concept is crucial in the search for Earth-like exoplanets, as liquid water is essential for life as we know it. Understanding this zone enables scientists to prioritize planets that may have the potential to support life, making it a significant focus in astrobiology and planetary science within the context of UPSC Prelims GS Paper I.