Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Circumstellar_habitable_zone> ?p ?o }
- Circumstellar_habitable_zone abstract "In astronomy and astrobiology, the circumstellar habitable zone (CHZ), or simply the habitable zone, is the region around a star within which planetary-mass objects with sufficient atmospheric pressure can support liquid water at their surfaces. The bounds of the CHZ are calculated using the known requirements of Earth's biosphere, its position in the Solar System and the amount of radiant energy it receives from the Sun. Due to the importance of liquid water to life as it exists on Earth, the nature of the CHZ and the objects within is believed to be instrumental in determining the scope and distribution of Earth-like extraterrestrial life and intelligence.The habitable zone is also called the Goldilocks zone, a metaphor of the children's fairy tale of Goldilocks and the Three Bears, in which a little girl chooses from sets of three items, ignoring the ones that are too extreme (large or small, hot or cold, etc.), and settling on the one in the middle, which is \"just right\".Since the concept was first presented in 1953, stars have been confirmed to possess a CHZ planet, including some systems that consist of multiple CHZ planets. Most such planets, being super-Earths or gas giants, are more massive than Earth, because such planets are easier to detect. On November 4, 2013, astronomers reported, based on Kepler data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs in the Milky Way. 11 billion of these may be orbiting Sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists. The CHZ is also of particular interest to the emerging field of habitability of natural satellites, because planetary-mass moons in the CHZ might outnumber planets.In subsequent decades, the CHZ concept began to be challenged as a primary criterion for life. Since the discovery of evidence for extraterrestrial liquid water, substantial quantities of it are now believed to occur outside the circumstellar habitable zone. Sustained by other energy sources, such as tidal heating or radioactive decay or pressurized by other non-atmospheric means, the basic conditions for water-dependent life may be found even in interstellar space, on rogue planets, or their moons. Liquid water can also exist at a wider range of temperatures and pressures as a solution, for example with sodium chlorides in seawater on Earth, chlorides and sulphates on Equatorial Mars, or ammoniates, due to its different colligative properties. In addition, other circumstellar zones, where non-water solvents favorable to hypothetical life based on alternative biochemistries could exist in liquid form at the surface, have been proposed.".
- Circumstellar_habitable_zone thumbnail Habitable_zone_-_HZ.png?width=300.
- Circumstellar_habitable_zone wikiPageExternalLink stellarHabitableZone.html.
- Circumstellar_habitable_zone wikiPageExternalLink NewWorldsObserver2004.pdf.
- Circumstellar_habitable_zone wikiPageExternalLink habitable-exoplanets-catalog.
- Circumstellar_habitable_zone wikiPageExternalLink www.hzgallery.org.
- Circumstellar_habitable_zone wikiPageExternalLink mg20026831.600-why-the-universe-may-be-teeming-with-aliens.html?full=true.
- Circumstellar_habitable_zone wikiPageExternalLink habitable.htm.
- Circumstellar_habitable_zone wikiPageExternalLink jwst-will-provide-capability-to-search-for-biomarkers-on-earth-like-worlds.
- Circumstellar_habitable_zone wikiPageExternalLink HabitableZone.htm.
- Circumstellar_habitable_zone wikiPageExternalLink 10.1007%2Fs10686-008-9121-x.pdf.
- Circumstellar_habitable_zone wikiPageID "1072751".
- Circumstellar_habitable_zone wikiPageLength "102788".
- Circumstellar_habitable_zone wikiPageOutDegree "271".
- Circumstellar_habitable_zone wikiPageRevisionID "708215813".
- Circumstellar_habitable_zone wikiPageWikiLink 16_Cygni_Bb.
- Circumstellar_habitable_zone wikiPageWikiLink 47_Ursae_Majoris.
- Circumstellar_habitable_zone wikiPageWikiLink 55_Cancri.
- Circumstellar_habitable_zone wikiPageWikiLink 55_Cancri_f.
- Circumstellar_habitable_zone wikiPageWikiLink 70_Virginis_b.
- Circumstellar_habitable_zone wikiPageWikiLink Active_SETI.
- Circumstellar_habitable_zone wikiPageWikiLink Allen_Telescope_Array.
- Circumstellar_habitable_zone wikiPageWikiLink Animal_cognition.
- Circumstellar_habitable_zone wikiPageWikiLink Apsis.
- Circumstellar_habitable_zone wikiPageWikiLink Archean.
- Circumstellar_habitable_zone wikiPageWikiLink Astrobiology.
- Circumstellar_habitable_zone wikiPageWikiLink Astronomical_unit.
- Circumstellar_habitable_zone wikiPageWikiLink Astronomy.
- Circumstellar_habitable_zone wikiPageWikiLink Atmospheric_escape.
- Circumstellar_habitable_zone wikiPageWikiLink Atmospheric_pressure.
- Circumstellar_habitable_zone wikiPageWikiLink Bar_(unit).
- Circumstellar_habitable_zone wikiPageWikiLink Bernard_M._Oliver.
- Circumstellar_habitable_zone wikiPageWikiLink Biogeochemical_cycle.
- Circumstellar_habitable_zone wikiPageWikiLink Biosphere.
- Circumstellar_habitable_zone wikiPageWikiLink Bond_albedo.
- Circumstellar_habitable_zone wikiPageWikiLink Brown_dwarf.
- Circumstellar_habitable_zone wikiPageWikiLink Byr.
- Circumstellar_habitable_zone wikiPageWikiLink Carbon_chauvinism.
- Circumstellar_habitable_zone wikiPageWikiLink Carbon_cycle.
- Circumstellar_habitable_zone wikiPageWikiLink Category:Articles_containing_video_clips.
- Circumstellar_habitable_zone wikiPageWikiLink Category:Articles_created_via_the_Article_Wizard.
- Circumstellar_habitable_zone wikiPageWikiLink Category:Astronomical_hypotheses.
- Circumstellar_habitable_zone wikiPageWikiLink Category:Astronomy_projects.
- Circumstellar_habitable_zone wikiPageWikiLink Category:Extraterrestrial_life.
- Circumstellar_habitable_zone wikiPageWikiLink Category:Planetary_habitability.
- Circumstellar_habitable_zone wikiPageWikiLink Category:Search_for_extraterrestrial_intelligence.
- Circumstellar_habitable_zone wikiPageWikiLink Celsius.
- Circumstellar_habitable_zone wikiPageWikiLink Ceres_(dwarf_planet).
- Circumstellar_habitable_zone wikiPageWikiLink Christopher_McKay.
- Circumstellar_habitable_zone wikiPageWikiLink Circumstellar_habitable_zone.
- Circumstellar_habitable_zone wikiPageWikiLink Colligative_properties.
- Circumstellar_habitable_zone wikiPageWikiLink Cosmic_Call.
- Circumstellar_habitable_zone wikiPageWikiLink Cryomyces_antarcticus.
- Circumstellar_habitable_zone wikiPageWikiLink Cryptobiosis.
- Circumstellar_habitable_zone wikiPageWikiLink Desert_planet.
- Circumstellar_habitable_zone wikiPageWikiLink Donald_E._Brownlee.
- Circumstellar_habitable_zone wikiPageWikiLink Drake_equation.
- Circumstellar_habitable_zone wikiPageWikiLink Earth.
- Circumstellar_habitable_zone wikiPageWikiLink Earth_Similarity_Index.
- Circumstellar_habitable_zone wikiPageWikiLink Earth_analog.
- Circumstellar_habitable_zone wikiPageWikiLink Europa_(moon).
- Circumstellar_habitable_zone wikiPageWikiLink Evolving_the_Alien.
- Circumstellar_habitable_zone wikiPageWikiLink Exomoon.
- Circumstellar_habitable_zone wikiPageWikiLink Exoplanet.
- Circumstellar_habitable_zone wikiPageWikiLink Extraterrestrial_intelligence.
- Circumstellar_habitable_zone wikiPageWikiLink Extraterrestrial_life.
- Circumstellar_habitable_zone wikiPageWikiLink Extraterrestrial_liquid_water.
- Circumstellar_habitable_zone wikiPageWikiLink F-type_main-sequence_star.
- Circumstellar_habitable_zone wikiPageWikiLink Fairy_tale.
- Circumstellar_habitable_zone wikiPageWikiLink File:Liquid_lakes_on_titan.jpg.
- Circumstellar_habitable_zone wikiPageWikiLink Frost_line_(astrophysics).
- Circumstellar_habitable_zone wikiPageWikiLink G-type_main-sequence_star.
- Circumstellar_habitable_zone wikiPageWikiLink Galactic_Center.
- Circumstellar_habitable_zone wikiPageWikiLink Galactic_habitable_zone.
- Circumstellar_habitable_zone wikiPageWikiLink Gas_giant.
- Circumstellar_habitable_zone wikiPageWikiLink Giant_tube_worm.
- Circumstellar_habitable_zone wikiPageWikiLink Giovanni_Vladilo.
- Circumstellar_habitable_zone wikiPageWikiLink Gliese_1214_b.
- Circumstellar_habitable_zone wikiPageWikiLink Gliese_163.
- Circumstellar_habitable_zone wikiPageWikiLink Gliese_163_c.
- Circumstellar_habitable_zone wikiPageWikiLink Gliese_581_c.
- Circumstellar_habitable_zone wikiPageWikiLink Gliese_581_g.
- Circumstellar_habitable_zone wikiPageWikiLink Gliese_667.
- Circumstellar_habitable_zone wikiPageWikiLink Gliese_667_Cc.
- Circumstellar_habitable_zone wikiPageWikiLink Gliese_876.
- Circumstellar_habitable_zone wikiPageWikiLink Gliese_876_b.
- Circumstellar_habitable_zone wikiPageWikiLink Gliese_876_c.
- Circumstellar_habitable_zone wikiPageWikiLink Goldilocks_and_the_Three_Bears.
- Circumstellar_habitable_zone wikiPageWikiLink Goldilocks_principle.
- Circumstellar_habitable_zone wikiPageWikiLink Greenhouse_effect.
- Circumstellar_habitable_zone wikiPageWikiLink Guillermo_Gonzalez_(astronomer).
- Circumstellar_habitable_zone wikiPageWikiLink HD_28185_b.
- Circumstellar_habitable_zone wikiPageWikiLink HD_40307.
- Circumstellar_habitable_zone wikiPageWikiLink HD_40307_g.
- Circumstellar_habitable_zone wikiPageWikiLink HD_69830.
- Circumstellar_habitable_zone wikiPageWikiLink HD_69830_d.
- Circumstellar_habitable_zone wikiPageWikiLink HD_85512_b.
- Circumstellar_habitable_zone wikiPageWikiLink Habitability_of_natural_satellites.
- Circumstellar_habitable_zone wikiPageWikiLink Harlow_Shapley.
- Circumstellar_habitable_zone wikiPageWikiLink Hellas_Planitia.