Habitable
71Gliese 581 — Gliese 581 The star Gliese 581. Digitized Sky Survey photo. Observation data Epoch J2000.0      Equinox J2000.0 (ICRS) …
72Stars and planetary systems in fiction — The planetary systems of stars other than the Sun and the Solar System are a staple element in much science fiction. Contents 1 Overview 1.1 The brightest stars …
73Gliese 581 g — système de Gliese 581 (Image de la NSF) Étoile Nom Gliese 581 Ascension droite …
74Natural satellite habitability — Artist s impression of a hypothetical habitable moon of Upsilon Andromedae d Natural satellite habitability is the measure of a natural satellite s potential to sustain life. The study of natural satellite habitability is important to… …
75Gliese 581 c — Planetbox begin name = Gliese 581 c Planetbox star star = Gliese 581 constell = Libra RA = RA|15|19|26 DEC = DEC|−07|43|20 dist ly = 19.9 dist pc = 6.12 class = M2.5VPlanetbox orbit period = 12.93cite encyclopedia | title = Planet : Gl 581 c |… …
76Extraterrestrial liquid water — Extraterrestrial liquid water, the presence of water in its liquid state, is a subject of wide interest because it is a commonly suggested prerequisite for the emergence of extraterrestrial life. Earth, with oceanic water covering 71% of its… …
77Drake equation — This article is about Frank Drake s equation. For the Tub Ring music album, see Drake Equation (album). The Drake equation (sometimes called the Green Bank equation or the Green Bank Formula) is an equation used to estimate the number of… …
78Gliese 581 c — Taille comparée de Gliese 581 c avec la Terre et Neptune selon différents modèles de composition. Du plus petit au plus grand rayon : modèle de planète métallique pure, type tellurique à 67 % Fe, 32,5 % MgSiO3, aqueuse à 75 %… …
79Anexo:Rascacielos de la Ciudad de México — La Torre Latinoamericana la primera construcción que rebasó los 183 metros de altura (204 metros, incluida la antena) …
80Extraterrestrial life — For fiction, see Extraterrestrials in fiction. For other uses, see Alien (disambiguation). A 1967 Soviet Union 16 kopeks postage stamp, depicting a satellite from an imagined extraterrestrial civilization …
