Assertion: habitable zone | /r/HasProperty | chz
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Source sentences:
text: The “Goldilocks zone” is a metaphor used to refer to the Circumstellar Habitable Zone (CHZ), which is a region in space where a planet is at a distance from its star, such that its surface is not too cold or too hot and water can exist in liquid form.
text: The term Circumstellar Habitable Zone (CHZ) was introduced by astronomer James Kasting in the 1993.