| 词条 | Desert planet |
| 释义 |
A desert planet or dry planet is a theoretical type of terrestrial planet with a surface consistency similar to Earth's hot deserts. The concept has become a common setting in science fiction,[1] appearing as early as the 1956 film Forbidden Planet and Frank Herbert's 1965 novel Dune,[2][3][4] and more recently in the Star Wars franchise as the planets Tatooine, Geonosis, and Jakku. HabitabilityA 2011 study suggested that not only are life-sustaining desert planets possible, but that they might be more common than Earth-like planets.[5] The study found that, when modeled, desert planets had a much larger habitable zone than ocean planets.[5] The same study also speculated that Venus may have once been a habitable desert planet as recently as 1 billion years ago.[5] It is also predicted that Earth will become a desert planet within a billion years due to the Sun's increasing luminosity.[5] A study conducted in 2013 concluded that hot desert planets without runaway greenhouse effect can exist in 0.5 AU around Sun-like stars. In that study, it was concluded that a minimum humidity of 1% is needed to wash off carbon dioxide from the atmosphere, but too much water can act as a greenhouse gas itself. Higher atmospheric pressures increase the range in which the water can remain liquid.[6] See also
References1. ^{{Cite book|last=Touponce |first=William F. |year=1988 |title=Frank Herbert|chapter=Intellectual Background |location=Boston|publisher=Twayne Publishers imprint, G. K. Hall & Co|page=119 |isbn=978-0-8057-7514-3|quote=}} {{exoplanet}}{{DEFAULTSORT:Desert Planet}}2. ^{{cite web|url=http://www.culturevulture.net/Movies4/ForbiddenPlanet.htm |first=Les|last=Wright|title=Forbidden Planet (1956)|publisher=Culturevulture.net (Internet Archive) |accessdate=May 7, 2006 |archiveurl= https://web.archive.org/web/20060507194241/http://www.culturevulture.net/Movies4/ForbiddenPlanet.htm |archivedate=May 7, 2006}} 3. ^{{cite web|url=http://www.scifi.com/sfw/issue42/classic.html |title=Classic Sci-Fi Reviews: Dune|first=Tamara I.|last=Hladik|publisher=SciFi.com|accessdate=April 20, 2008 |archiveurl =https://web.archive.org/web/20080420150907/http://www.scifi.com/sfw/issue42/classic.html |archivedate = April 20, 2008}} 4. ^{{Cite journal |first=Jon |last=Michaud |url=http://www.newyorker.com/online/blogs/books/2013/07/dune-endures.html |title=Dune Endures |journal=The New Yorker |date=July 12, 2013 |accessdate=November 27, 2013}} 5. ^1 2 3 {{cite news|last=Choi|first=Charles Q.|title=Alien Life More Likely on Dune Planets|url=http://www.astrobio.net/news-exclusive/alien-life-more-likely-on-dune-planets/|accessdate=June 12, 2014|date=September 2, 2011}} 6. ^{{cite journal|arxiv=1304.3714|title=Towards the Minimum Inner Edge Distance of the Habitable Zone |author1=Andras Zsom |author2=Sara Seager |author3=Julien de Wit |author4=Vlada Stamenkovic |date=September 4, 2013 |doi=10.1088/0004-637X/778/2/109 |volume=778 |issue=2 |journal=The Astrophysical Journal |page=109 |bibcode=2013ApJ...778..109Z}} 7 : Science fiction themes|Mars|Fictional terrestrial planets|Hypothetical planet types|Terrestrial planets|Deserts|Desert planets in fiction |
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