GS PrelimsScience and TechnologyUniverse and Space Technology2015

The term 'Goldilocks Zone' is often seen in the news in the context of

A

the limits of habitable zone above the surface of the Earth

B

regions inside the Earth where shale gas is available

C

search for the Earth-like planets in outer space

D

search for meteorites containing precious metals

Correct Answer: Option C

Explanation

1. The term 'Goldilocks Zone' is an informal name for the circumstellar habitable zone (CHZ). 2. It refers to the region around a star within which planetary-mass objects with sufficient atmospheric pressure can support liquid water at their surfaces. 3. Liquid water is considered a key ingredient for life as we know it. Therefore, the search for Earth-like planets (planets that could potentially host life) in outer space often focuses on finding planets located within the 'Goldilocks Zone' of their respective stars. Hence, option (C) is the correct context. 4. Option (A) is incorrect; the habitable zone is defined around a star, not above the surface of the Earth. 5. Option (B) is incorrect; it refers to geology and fossil fuels, unrelated to the astronomical concept. 6. Option (D) is incorrect; while meteorites are studied, the term 'Goldilocks Zone' is not specifically associated with the search for precious metals within them.

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