Difference between revisions 902255769 and 904636331 on enwiki

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Circumstellar habitable zone
{{redirect|Goldilocks Zone|the more general principle|Goldilocks principle|the planet first called "Goldilocks"|70 Virginis b}}
{{redirect|Habitable zone|the galactic zone|Galactic habitable zone}}
{{redirect|Comfort zone (astronomy)|other uses|Comfort zone (disambiguation)}}
{{merge from|Habitable Exoplanet|date=November 2018}}
{{short description|Zone around a star with strong possibilities for stable liquid water on a suitable planet}}
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Previous studies have been more conservative. In 2011, Seth Borenstein concluded that there are roughly 500 million habitable planets in the Milky Way.<ref name="BorensteinS">{{cite news |last1=Borenstein |first1=Seth |title=Cosmic census finds crowd of planets in our galaxy |agency=Associated Press |date=19 February 2011 |url=http://apnews.excite.com/article/20110219/D9LG45NO0.html |accessdate=24 April 2011 
|archive-url=https://web.archive.org/web/20110927053134/http://apnews.excite.com/article/20110219/D9LG45NO0.html |archive-date=27 September 2011 |dead-url=yes }}</ref> NASA's [[Jet Propulsion Laboratory]] 2011 study, based on observations from the ''[[Kepler (spacecraft)|Kepler]]'' mission, raised the number somewhat, estimating that about "1.4 to 2.7 percent" of all stars of spectral class [[F-type main-sequence star|F]], [[G-type main-sequence star|G]], and [[orange dwarf|K]] are expected to have planets in their CHZs.<ref name="ChoiCQ">{{cite web |last1=Choi |first1=Charles Q.|url=http://www.space.com/11(contracted; show full){{authority control}}

[[Category:Search for extraterrestrial intelligence]]
[[Category:Planetary habitability]]
[[Category:Astronomical hypotheses]]
[[Category:Extraterrestrial life]]
[[Category:Articles containing video clips]]
[[Category:Extraterrestrial water]]