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The 35 pages that link to Habitable zone, each with the reason it gives.

• ExoplanetRelated: It gives a first, limited way to assess an exoplanet’s potential for surface habitability.

• Planetary habitabilityRelated: It estimates whether stellar heating permits surface water, but does not establish that life can exist.

• Transit methodRelated: Transit surveys can find planets in this zone, though a transit alone does not establish habitability.

• Exoplanet atmosphereRelated: Atmospheric greenhouse effects can expand or shrink the conditions for surface liquid water.

• Drake equationRelated: It offers one way to estimate the fraction of planets with potentially habitable conditions.

• PanspermiaRelated: Transfer can only seed life if the destination offers conditions compatible with its persistence.

• Alpha CentauriRelated: It frames assessments of whether planets around the system’s stars could support surface water.

• Red dwarfRelated: A red dwarf’s low luminosity places this zone close to the star.

• Rare Earth hypothesisRelated: It supplies one familiar requirement, though the hypothesis treats habitability as more than orbital distance.

• Proxima CentauriRelated: Proxima b receives enough starlight to lie within Proxima’s estimated habitable zone.

• Solar luminosityRelated: Solar luminosity sets the scale for estimating the Sun’s habitable-zone distances.

• TRAPPIST-1Related: Several planets receive starlight placing them near this zone, though habitability is not established.

• Stellar activityRelated: Flares and high-energy radiation can alter the conditions around planets in this zone.

• Terrestrial planetRelated: Terrestrial planets in this region are prominent candidates for surface liquid water, though location alone is insufficient.

• Planetary equilibrium temperatureRelated: Equilibrium temperature helps estimate whether a planet’s orbit permits surface temperatures compatible with liquid water.

• Planetary orbitRelated: A planet’s orbit sets the stellar energy it receives and its place relative to this zone.

• Proxima Centauri bRelated: Proxima Centauri b receives stellar energy consistent with its star’s habitable zone, but that alone does not establish habitability.

• Exoplanet detectionRelated: Detection surveys identify planets whose orbits place them in this region.

• Planetary systemRelated: Its location depends on stellar energy, while other system properties can alter habitability.

• Earth analogRelated: Orbital placement helps assess potential surface temperatures, but does not establish habitability.

• Kepler-186fNarrower topic: Kepler-186f receives starlight consistent with this zone, but its actual surface conditions are unknown.

• Extraterrestrial lifeRelated: It offers one initial way to identify worlds where Earth-like life might persist.

• Barnard's StarRelated: For a dim red dwarf, this zone lies much closer to the star than Earth's orbit does to the Sun.

• Carbon-based lifeRelated: Liquid water is a common condition sought for environments that might support known life.

• Extraterrestrial intelligenceRelated: It helps prioritize worlds that might support life capable of developing intelligence.

• Epsilon EridaniRelated: Any small planet in this system would need assessment against the star’s habitable-zone distance.

• Galactic habitable zoneRelated: It describes a local condition that the galactic-scale hypothesis cannot replace.

• Kepler-22bNarrower topic: Kepler-22b’s orbit was the first found within this zone around a Sun-like star.

• Kepler-452bRelated: Kepler-452b’s orbit lies within this estimated region around its star.

• Space scienceRelated: Its boundaries help prioritize searches, but do not establish whether a world is inhabited.

• Tau CetiRelated: Candidate planets around Tau Ceti have been assessed partly by whether their orbits fall in this region.

• Kepler-442bRelated: Kepler-442b orbits within estimates of its star’s habitable zone.

• Gliese 581dRelated: Gliese 581d was discussed as a possible world near the outer part of this zone.

• K2-18bRelated: K2-18b receives an amount of stellar energy that places it near its star’s habitable zone.

• Location of EarthRelated: Earth orbits within the Sun’s estimated habitable zone.