Other hypothetical types of life

Click For Summary

Discussion Overview

The discussion explores hypothetical forms of life that could be based on non-carbon elements such as ammonia or silicon, referencing various science fiction works that depict these concepts. Participants share examples from literature and discuss the implications of such life forms.

Discussion Character

  • Exploratory
  • Debate/contested
  • Historical

Main Points Raised

  • Some participants inquire about science fiction that features life forms based on ammonia or silicon.
  • One participant mentions the "Horta" from Star Trek as an example of a silicon-based life form.
  • Another recalls Kurt Vonnegut's character proposing "an intelligent gas from Pluto" in 'Breakfast of Champions'.
  • Participants note that trolls in Terry Pratchett's Discworld series are silicon-based.
  • Asimov is credited with highlighting the similarities between carbon and silicon in his work 'The Talking Stone'.
  • One participant references a story about life evolving inside the sun, which can only exist at high temperatures.
  • Another participant mentions Hal Clement's 'Mission of Gravity', which features a life form using methane instead of water.
  • There is a discussion about 'The Dragon's Egg' and its portrayal of neutron life on a neutron star, with some confusion about the title 'Flatland'.
  • One participant discusses plasmoid life forms from Arthur C. Clarke's works, including 'Sundiver'.
  • There are mentions of speculative ideas regarding hexasilane (Si6H14) and its potential as a fuel, alongside concerns about silica buildup in engines.
  • Participants express uncertainty about specific stories and clarify titles and authors in response to each other.

Areas of Agreement / Disagreement

Participants do not reach a consensus on specific examples of non-carbon life forms in science fiction, and there is some confusion regarding titles and details of the works mentioned. Multiple competing views and interpretations remain throughout the discussion.

Contextual Notes

Some references to specific stories and their content are incomplete or unclear, leading to potential misunderstandings about the nature of the life forms discussed.

José Ricardo
Messages
92
Reaction score
5
is there any sci-fi that would rerate a life based on ammonia or silicon or any other type of life?
 
Physics news on Phys.org
I am not sure what you mean by "rerate".
The Start Trek crews have certainly run into a lot of "non-carbon" life forms.
As far as Silicon-based, there was an episode in the original series about "Hortas".

http://www.startrek.com/database_article/horta
 
  • Like
Likes   Reactions: BillTre
José Ricardo said:
is there any sci-fi that would rerate a life based on ammonia or silicon or any other type of life?
I don't recall any specifics but I'm sure there have been sci fic stories with silicon based life forms.
 
I seem to recall Kurt Vonnegut having one of his characters (most likely the steadfastly unsuccessful SF writer, Kilgore Trout) positing "an intelligent gas from Pluto". (just checked: it's from 'Breakfast of Champions').
 
  • Like
Likes   Reactions: Lren Zvsm
The trolls in Terry Pratchett's disc world series are silicon based.
 
I think Asimov was the first to point out the similarities between carbon and silicon, and to write about silicon-based life. The Talking Stone was published in 1955.

I recall another story about life which evolved inside the sun and can only exist at high temperature, but can't recall any details except that I think they decide to explore the solar system eventually, with disastrous results.
 
Flatland? Not sure if that's the right book. About neutron life on a neutron star.
 
  • Like
Likes   Reactions: Lren Zvsm
From Hal Clement the Mission of Gravity had a life-form with methane instead of water as I recall (based on carbon but still an interesting twist I think).
 
  • #10
Lren Zvsm said:
You're thinking of "The Dragon's Egg."
Just read that three weeks ago. Great story.
I love first contact stories.

Flatland was great too.
 
  • Like
Likes   Reactions: Lren Zvsm
  • #11
IIRC, Clarke did a plasmoid-ish whatever from the Sun which, like Icarus, flew too high and died of it...

Brin's 'Sundiver' had plasmoid related life in the Sun. The anthropomorphic shapes often observed were a cruel hoax, intended to discredit the scientists studying the real thing. Much galactic / uplift politics involved...

Back in 'Golden Age' SciFi, there was a short series where 'star dwellers' took up residence in fusion reactors. IIRC, they sealed a treaty with Earth by laser-etching below a famous inscription, traditionally inscribed. Same font, too. Second book had uppity Terrans' delegation summoned to face the Galactic Council near the core. Seems the Council had 'broken bad' since the 'Star Dwellers' last dealt with them. The delegates' escaping ship was being 'run down' by a fleet of enforcers when the covert star-dweller in their fusion reactor boosted the output and took them clear. SW Leia could have used such...

Added: James Blish, 1) the star dwellers 2) mission to the heart stars
;-)
---
And, yes, the 'Lensman' book, where whatsits adopted atomic reactors as incubators --Think megapodes-- to the dismay of their owners...

--
Regarding silicon-based, there's a lot of woo currently circulating about a hexasilane (Si6H14) isomer that is unexpectedly stable. Dr. Peter Plichta's scheme to use it in place of hydrocarbon fuels seems too good to be true. YMMV.
 
Last edited:
  • #12
Nik_2213 said:
...

--
Regarding silicon-based, there's a lot of woo currently circulating about a hexasilane (Si6H14) isomer that is unexpectedly stable. Dr. Peter Plichta's scheme to use it in place of hydrocarbon fuels seems too good to be true. YMMV.

There is no reason to doubt that silane would burn fantastically. I believe most of the exhaust would be fumed silica. Certainly some sort of silica. A build up of quartz inside an engine cylinder is not likely to be a good thing. Silica can be abrasive.
 
  • #13
Micronised diesel soot is bad, the same in silica would be much worse. Silicosis aka 'Miners Lung' is kin to asbestosis for lethality...
 
  • #14
RPinPA said:
I think Asimov was the first to point out the similarities between carbon and silicon, and to write about silicon-based life. The Talking Stone was published in 1955.

I recall another story about life which evolved inside the sun and can only exist at high temperature, but can't recall any details except that I think they decide to explore the solar system eventually, with disastrous results.

It's not "Flatland" that describes life on the surface of Neutron Star, but "The Dragon's Egg" https://en.wikipedia.org/wiki/Dragon's_Egg
 
  • #15
Just finished reading Dragon's Egg a few weeks ago.
Awesome book.
 
  • Like
Likes   Reactions: Lren Zvsm

Similar threads

Replies
27
Views
4K
  • · Replies 1 ·
Replies
1
Views
4K
Replies
9
Views
4K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 12 ·
Replies
12
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 59 ·
2
Replies
59
Views
6K
  • · Replies 7 ·
Replies
7
Views
2K