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  2. Habitability - Wikipedia

    en.wikipedia.org/wiki/Habitability

    Habitability is the conformance of a residence or abode to the implied warranty of habitability. [circular definition] A residence that complies is said to be habitable.It is an implied warranty or contract, meaning it does not have to be an express contract, covenant, or provision of a contract.

  3. Habitable zone - Wikipedia

    en.wikipedia.org/wiki/Habitable_zone

    Founded the most common working definition of the habitable zone used today. Assumes that CO 2 and H 2 O are the key greenhouse gases as they are for the Earth. Argued that the habitable zone is wide because of the carbonate–silicate cycle. Noted the cooling effect of cloud albedo. Table shows conservative limits. Optimistic limits were 0.84 ...

  4. Habitable zone for complex life - Wikipedia

    en.wikipedia.org/wiki/Habitable_Zone_for_Complex...

    The supergalactic habitable zone takes into account events in galaxies that can end habitability not only in a galaxy, but all galaxies nearby, such as galaxies merging, active galactic nucleus, starburst galaxy, supermassive black holes and merging black holes, all which output intense radiation. The supergalactic habitable zone also takes ...

  5. Planetary habitability - Wikipedia

    en.wikipedia.org/wiki/Planetary_habitability

    Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and maintain an environment hospitable to life. [1] Life may be generated directly on a planet or satellite endogenously.

  6. Habitability of natural satellites - Wikipedia

    en.wikipedia.org/wiki/Habitability_of_natural...

    The habitability of natural satellites is the potential of moons to provide habitats for life, though it is not an indicator that they harbor it. Natural satellites are expected to outnumber planets by a large margin and the study of their habitability is therefore important to astrobiology and the search for extraterrestrial life .

  7. Hycean planet - Wikipedia

    en.wikipedia.org/wiki/Hycean_planet

    A hycean planet is a hypothetical type of planet with liquid water oceans under a hydrogen atmosphere. [1] The presence of extraterrestrial liquid water makes hycean planets regarded as promising candidates for planetary habitability.

  8. Gaia hypothesis - Wikipedia

    en.wikipedia.org/wiki/Gaia_hypothesis

    Gaia evolves through a cybernetic feedback system operated by the biota, leading to broad stabilization of the conditions of habitability in a full homeostasis. Many processes in the Earth's surface, essential for the conditions of life, depend on the interaction of living forms, especially microorganisms , with inorganic elements.

  9. Galactic habitable zone - Wikipedia

    en.wikipedia.org/wiki/Galactic_habitable_zone

    In astrobiology and planetary astrophysics, the galactic habitable zone is the region of a galaxy in which life is most likely to develop. The concept of a galactic habitable zone analyzes various factors, such as metallicity (the presence of elements heavier than hydrogen and helium) and the rate and density of major catastrophes such as supernovae, and uses these to calculate which regions ...