habitable zone

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Related to Habitability zone: Circumstellar habitable zone

habitable zone

the area around a star (such as the sun) in which there is sufficient energy present to sustain life.
References in periodicals archive ?
Recent studies, Selsis said, show that the habitability zone of Gliese 581 extends farther than originally thought, placing planet Gliese 581d, which flanks Gliese 581g on the side farther from the star, in the habitability zone, too.