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Understanding planetary habitability is partly an extrapolation of the Earth's conditions, as it is the only planet currently known to support life. Planetary habitability is the measure of a planet's or a natural satellite's potential to sustain life. — “Planetary habitability - Wikipedia, the free encyclopedia”, en.wikipedia.org
For habitability of planets, see Planetary habitability. Habitability is the conformance of a residence or abode to the implied warranty of habitability. — “Habitability - Wikipedia, the free encyclopedia”, en.wikipedia.org
Determining the habitability of red dwarf systems could help reveal the likelihood of extraterrestrial life, as red dwarfs make up most stars in the Milky Way Galaxy. "No one found any showstoppers to habitability," says Gibor Basri of the University of California, Berkeley. — “Habitability of red dwarf systems - Wikipedia, the free”, en.wikipedia.org