What is the alternative name for the Habitable Zone, defined by optimal conditions for liquid water?
Answer
The Goldilocks Zone
The Habitable Zone, which represents the orbital region around a star where a planet could maintain liquid water on its surface, is often colloquially referred to as the Goldilocks Zone. This nickname emphasizes the necessity of conditions being 'just right'—not too hot, which would boil the water away into vapor, and not too cold, which would freeze it into solid ice. This specific temperature range, typically between 0 degrees Celsius and 100 degrees Celsius under Earth-like pressure, is the fundamental criterion for this zone, making the Goldilocks analogy highly descriptive of the narrow requirements for liquid water stability.

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