Dyson tree
{{short description|Hypothetical genetically-engineered plant capable of growing inside a comet}}
{{external media| float =right | width = 220px| image1 = [http://www.orionsarm.com/im_store/dysontree.jpg Artist's concept of a spherical Dyson tree]}}
A Dyson tree is a hypothetical genetically engineered plant (perhaps resembling a tree) capable of growing inside a comet, suggested by the physicist Freeman Dyson.{{cite book|last=Basu|first=SK|title=Encyclopaedic Dictionary of Astrophysics|year=2007|publisher=Global Vision Publishing|url=https://books.google.com/books?id=ffNLyv3YV4UC&q=Dyson%20tree&pg=PA96|page=96|isbn=9788182202207}}{{cite AV media |date=9 December 2022 |title=Freeman Dyson, Part I: From Physics to the Far Future | volume=2101 | series=Closer to Truth |url=https://www.youtube.com/watch?v=SWi_O-MLmB0 |access-date=1 May 2024 |time=22:43 |via=YouTube}}{{cite magazine| magazine=The Atlantic | author=Freeman J. Dyson | date=November 1997 | volume=280 | number=5| pages=71–80| title=Warm-Blooded Plants and Freeze-Dried Fish | url=https://www.theatlantic.com/past/docs/issues/97nov/space.htm | access-date=1 May 2024 }} Plants may be able to produce a breathable atmosphere within the hollow spaces of the comet (or maybe even within the plants themselves), utilising solar energy for photosynthesis and cometary materials for nutrients, thus providing self-sustaining habitats for humanity in the outer solar system analogous to a greenhouse in space, a shell grown by a mollusc or the actions of thermogenic plants, such as the skunk cabbage or the voodoo lily.{{Cite web|last=Lyra|first=Wladimir|title=Living in a comet: How to build a Dyson treehouse|url=https://www.lcsun-news.com/story/life/2020/03/08/living-comet-how-build-dyson-treehouse/4964074002/|access-date=2021-05-17|website=Las Cruces Sun-News|language=en-US|date=8 March 2020}}
A Dyson tree might consist of a few main trunk structures growing out from a comet nucleus, branching into limbs and foliage that intertwine, forming a spherical structure possibly dozens of kilometers across.
Dyson trees in science fiction
Dyson trees are mentioned a number of times in science fiction, beginning in the 1980s:
- One of the first adoptions of the trope is Rachel Pollack's Tree House (1984).{{cite book|last=Westfahl|first=Gary|title=Islands in the Sky: The Space Station Theme in Science Fiction Literature|year=2009|publisher=Wildside|url=https://books.google.com/books?id=NR6wAvxlDncC&q=%22Dyson%20tree%22&pg=PA209|page=209|isbn=9781434403568}}
- The concept is discussed in Carl Sagan and Ann Druyan's 1985 non-fiction book Comet, and several paintings of Dyson trees around Saturn and in interstellar space are provided in the book by Jon Lomberg.{{Cite book|last1=Sagan|first1=Carl|url=https://searchworks.stanford.edu/view/1610179|title=Comet|last2=Druyan|first2=Ann|date=1985|publisher=Random House|isbn=978-0-394-54908-8|edition=1st|location=New York}}
- In Michael Swanwick's 1987 transhumanist novel Vacuum Flowers, "dysonsworlders" have established tree settlements in the Oort Cloud.{{Cite book|last=Swanwick|first=Michael|url=https://www.worldcat.org/oclc/20956579|title=Vacuum flowers|date=1988|publisher=Ace Books|isbn=0-441-85876-7|location=New York|oclc=20956579}}
- Under the name of "Space Poplars", Dyson trees are described in Donald Moffitt's two science fiction novels, The Genesis Quest and Second Genesis. Here they are used as both habitats and spacecraft, propelled by reflective outer leaves used as organic solar sails.{{Cite book|last=Moffitt|first=Donald|url=https://www.worldcat.org/oclc/51676877|title=The Genesis quest|date=2003|publisher=Ibooks|isbn=0-7434-5833-8|location=New York|oclc=51676877}}{{Cite book|last=Moffitt|first=Donald|url=https://www.worldcat.org/oclc/18982814|title=Second Genesis.|date=1988|publisher=Sphere|isbn=0-7474-0016-4|oclc=18982814}}
- Dan Simmons, in Endymion (1996) and the Rise of Endymion (1997) – both part of his Hyperion Cantos – refers to Dyson trees, and in the latter novel to a huge tree system that surrounds an entire star (reminiscent of a Dyson sphere).
- In Stephen Baxter's Manifold: Space (2001), Baxter's protagonist Reid Malenfant at one point finds himself inside a Dyson tree.{{Cite book|last=Baxter|first=Stephen|url=https://www.worldcat.org/oclc/43718099|title=Space|date=2000|publisher=HarperCollins|isbn=0-00-225771-8|location=London|oclc=43718099}}
- In the Orion's Arm shared universe (established 2000), Dyson trees and Dyson tree "forests" are called orwoods; these have been established in a number of star systems throughout terragen space.{{cite web |last1=Drashner |first1=Todd |last2=Sandberg |first2=Anders |last3=Kazlev |first3=M. Alan |title=Dyson Trees |url=https://www.orionsarm.com/eg-article/48472ab83cce0 |website=Orion's Arm - Encyclopedia Galactica |access-date=15 June 2023 |archive-url=https://web.archive.org/web/20221207230147/https://www.orionsarm.com/eg-article/48472ab83cce0 |archive-date=7 December 2022 |date=20 November 2001}}{{cite web |last1=Kazlev |first1=M. Alan |title=Orwoods |url=https://www.orionsarm.com/eg-article/475d705969d99 |website=Orion's Arm - Encyclopedia Galactica |access-date=15 June 2023 |archive-url=https://web.archive.org/web/20221209083543/https://www.orionsarm.com/eg-article/475d705969d99 |archive-date=9 December 2022 |date=17 December 2001}} The word "Orwood" in this context was originally coined by Anders Sandberg.{{Cite web|title=Welcome to the Orion's Arm Universe Project|url=https://www.orionsarm.com/|access-date=2021-05-17|website=www.orionsarm.com}}{{Failed verification|date=June 2023}}
- The Transhuman Space roleplaying game includes the beginning of a Dyson tree endeavour on Yggdrasil Station.{{Cite web|title=Transhuman Space|url=http://www.sjgames.com/gurps/transhuman/|access-date=2021-05-17|website=www.sjgames.com}}
- Eclipse Phase Second Edition role-playing game references the Dyson tree as an example of a Biological Habitat.
- In the Tenchi Muyo! OVA series, the Jurai utilize trees that can live in space as ships, and in the temple of the goddess-like character Tokimi, a giant tree whose roots encompass a planet can be seen.{{Cite web|date=2017-08-04|title=Tenchi Muyo OVA Collector's Edition Review • Anime UK News|url=https://animeuknews.net/2017/08/tenchi-muyo-ova-collectors-edition-review/|access-date=2021-05-17|website=Anime UK News|language=en-GB}}
- In The Dirty Pair series, the episode "Run From the Future" is set on the Nimkasi habitat, an outlaw habitat that is a Dyson tree.{{Cite web|title=The Dirty Pair: Run From the Future (Volume)|url=https://comicvine.gamespot.com/the-dirty-pair-run-from-the-future/4050-19480/|access-date=2021-05-17|website=Comic Vine|language=en}}
- The video game Eufloria is based on the Dyson tree concept.{{cite book|last=Rose|first=Mike|title=250 Indie Games You Must Play|year=2011|publisher=Taylor & Francis|url=https://books.google.com/books?id=WsnzL0HYWEcC&q=%22Dyson%20tree%22&pg=PA265|page=265|isbn=9781439875759}}
See also
{{Portal|Science Fiction}}
- {{annotated link|Bioship}}
- {{annotated link|Dyson sphere}}
- {{annotated link|The Integral Trees|The Integral Trees}}
References
{{Reflist}}
External links
- [http://www.wladimirlyra.com/index.html Wladimir Lyra] {{Webarchive|url=https://web.archive.org/web/20231112212926/http://www.wladimirlyra.com/index.html |date=2023-11-12 }}, "[https://eu.lcsun-news.com/story/life/2020/03/08/living-comet-how-build-dyson-treehouse/4964074002/ Living in a comet: How to build a Dyson treehouse]". Las Cruces Sun-News, March 2020.
- [http://itsf.org/resources/factsheet.php?fsID=98 Dyson Tree] – Innovative Technologies from Science Fiction for Space Application.