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There was an orbital station; a huge torus, as known from sci-fi. It was a luxurious place for people from dusty planets to relax at, and spend hard-earned money in environments resembling Earth fr...
On Earth, the vast majority of the biosphere is ultimately dependent on a large number of autotrophic organisms that produce usable energy in the form of glucose by using photosynthesis. However, o...
In Halo series there is an intelligent race called Unggoy that evolved on a planet caled Balaho orbiting a blue supergiant called Tala, I would like to know if it would be possible for an intellige...
Given that a hypothetical method to generate negative mass exists (which involves intricate manipulation of subatomic particles with lasers... or some other science-fiction), what would be an appro...
In the story I'm writing, humanity has cracked FTL travel by compressing a chunk of matter outside the craft into a short lived, gravitationally weak black hole that leads to a higher dimension (kn...
Is it possible to create a large space station orbiting the sun around 10 million kilometers away from the sun? It would be a large settlement which houses around 200 people. Energy would not be a ...
Consider a planet identical to Earth except that it has no moon. How long is the complete day-night cycle on this planet? I've heard that having no moon would speed up the planet's rotation, resu...
Would it be possible to have alien life use Hydrogen sulfide instead of Water? I assume they are still carbon based. Also for a sunlike star what distances should this planet or moon be located?
I have a race of carnivorous mammals (the same from this question) for whom blood plays an extremely important role in cultural rituals. For complex cultural reasons, a member of this race (call hi...
Would it be possible to replace water with hydrogen peroxide on an Earth like planet? I know water and hydrogen peroxide are similar, Also if this configuration is possible what may cause an Earth ...
I want to create a world that abides completely by our understanding of reality. The whole premise is that "If the Universe is large enough, this would all be non-fiction", assuming the laws of phy...
We have talked about hive minds a lot here and relatively recently, a new idea of hive mind has become popular; the collective consciousness. The basic run down is that a collective consciousness s...
Background: Interest in the red planet is re-surging. For example, Elon Musk has said he will lay out a detailed plan for Mars colonization this September. Question: Assuming the next step in spa...
Would it be possible for plants to evolve a co-dependency on a community of bioluminescent bacteria in order to survive in a low or zero light environment? Such as the plant gathering nutrients an...
Could something similar to a naval battleship main gun work in the vacuum of space? Let me set the stage: A turret of 2-3 large caliber guns, loaded with an explosive shell. Artificial gravity...
First, a little background information. For the purpose of my story, I'm making the Earth uninhabitable, similar to this question. This is to cause a mass exodus from the solar system through a bit...
I'm interested in asteroid mining, but don't have the infrastructure in place to process ores and the like in space. However, I've got a nice planet-based refinery setup where I could easily proces...
Cancer works by making cells split and reproduce at an accelerated rate, slowly and painfully killing the afflicted. Its true weapon lies in its ability to surpass the immunity system. As far as ...
Non-Newtonian fluids are fluids that exhibit the qualities of a solid under rapid pressure but function as a liquid under long duration pressures. Is it possible, that an animal skin or some sor...
Would it be possible to use spider silk for armour, instead of metal? I am not worried about how to obtain the silk. I know that spiders are not domesticable and that they are too aggressive to ea...
Yesterday I was talking with some of my friends about ideal/utopian worlds and came across a potential infinite loop problem. My ideal world was that of a transhumanist vision. Humans still look an...
As Luke says in an answer to this question, a species may never attempt space travel if they cannot see that there is something out there. My question is just this; is that possible? Could a plane...
Bioluminescence is badass. It involves living beings emitting bright light in the visible spectrum. Would it be, though, possible that a lifeform emits UV (ultraviolet) light? Does it occur in re...
There's a myth that hurricanes can be stopped by nuclear bombs. (Which it turns out, isn't true). I got to thinking about what might stop a hurricane from forming and it occurred to me, perhaps,...
The idea I have is an Athmosphere with heavy gasses so the creatures that inhabit this planet have an easier time flying. The temperature is colder than Earth -119° as minimum , 12° average and ...
