Difference between revisions 922275273 and 922286501 on enwiki

{{redirect|Goldilocks Zone|the more general principle|Goldilocks principle}}
{{redirect|Habitable zone|the galactic zone|Galactic habitable zone}}
{{short description|Zone around a star with strong possibilities for stable liquid water on a suitable planet}}
(contracted; show full) |journal=Astrobiology
 |volume=12 |issue=5 |pages=469–86
 |bibcode=2012AsBio..12..469N
 |doi=10.1089/ast.2011.0748
 |pmid=22680693
}}</ref>


== Alternative names for the CHZ ==
The name of the CHZ has received criticism by the scientific community due to the term 'habitable' incorrectly suggesting a direct link between the orbit of a planet and the probability of supporting life <ref name=":0">{{Cite journal|last=Tasker|first=Elizabeth|last2=Tan|first2=Joshua|last3=Heng|first3=Kevin|last4=Kane|first4=Stephen|last5=Spiegel|first5=David|last6=Brasser|first6=Ramon|last7=Casey|first7=Andrew|last8=Desch|first8=Steven|last9=Dorn|first9=Caroline|last10=Hernlund|first10=John|last11=Houser|first11=Christine|date=2017-02-00|title=The language of exoplanet ranking metrics needs to change|url=https://ui.adsabs.harvard.edu/2017NatAs...1E..42T/abstract|journal=Nature Astronomy|language=en|volume=1|pages=0042|doi=10.1038/s41550-017-0042}}</ref><ref>{{Cite web|url=https://blogs.scientificamerican.com/observations/lets-lose-the-term-habitable-zone-for-exoplanets/|title=Let's Lose the Term "Habitable Zone" for Exoplanets|last=Tasker|first=Elizabeth|website=Scientific American Blog Network|language=en|access-date=2019-10-21}}</ref><ref>{{Cite web|url=http://theconversation.com/until-we-get-better-tools-excited-reports-of-habitable-planets-need-to-come-back-down-to-earth-72425|title=Until we get better tools, excited reports of 'habitable planets' need to come back down to Earth|last=Tan|first=Joshua|website=The Conversation|language=en|access-date=2019-10-21}}</ref>. Alternative names have been proposed to reflect the use of the CHZ as a region where an Earth-like planet could support surface liquid water, including the 'Temperate zone' <ref name=":0" />. NASA Astrophysicist [[Jessie Christiansen]] proposed the 'ECHaLWOTS Zone', standing for 'Earth Could Have Liquid Water On The Surface'<ref>{{Cite web|url=https://twitter.com/aussiastronomer/status/1172582219006656512|title=Introducing the ECHaLWOTS Zone. 

("Earth Could Have Liquid Water On The Surface")

Pithy.|last=Christianstein  🔩|first=Dr Jessie 🔩|date=2019-09-13|website=@aussiastronomer|language=en|access-date=2019-10-21}}</ref>. This has recently gained media attention as a more accurate alternative<ref>{{Cite web|url=https://www.sciencenews.org/article/why-just-being-habitable-zone-doesnt-make-exoplanets-livable|title=Why just being in the habitable zone doesn’t make exoplanets livable|date=2019-10-04|website=Science News|language=en-US|access-date=2019-10-21}}</ref><ref>{{Cite web|url=https://www.numerama.com/sciences/562381-exoplanetes-faut-il-en-finir-avec-la-zone-dhabitabilite.html|title=Exoplanètes : faut-il en finir avec la « zone d'habitabilité » ? - Sciences|last=Ruher|first=Hugo|date=2019-10-20|website=Numerama|language=fr-FR|access-date=2019-10-21}}</ref>.<br />

==Significance for complex and intelligent life==
The [[Rare Earth hypothesis]] argues that complex and intelligent life is uncommon and that the CHZ is one of many critical factors. According to Ward & Brownlee (2004) and others, not only is a CHZ orbit and surface water a primary requirement to sustain life but a requirement to support the secondary conditions required for [[multicellular life]] to emerge and evolve. The secondary habitability factors are both geological (the role of surface water i(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]]