Goldilocks Zone
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The Goldilocks zone (or circumstellar habitable zone) is the range of orbital distances from a star where a rocky planet with an Earth-like atmosphere could sustain liquid water on its surface — not too hot, not too cold. The zone's boundaries are set by the runaway greenhouse inner limit and the maximum greenhouse outer limit, and vary with stellar luminosity, planetary albedo, and atmospheric composition.
Category: Astrobiology