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My world is basically the surviving chunks of an exploded planet (there's a little more to it than that but that's the important part for the question, ignore any issues of gravity etc.) and while ...
Many countries, authorities and companies have the concept of a maximum weight limit for manual handling, both to protect their workers and to protect themselves from lawsuits. Interstellar Shippi...
I am creating a science fiction worldbuilding project, in which humanity has colonised distant exoplanets. One such planet is a Venus-like planet in the sense that it has a perpetual cloud cover, a...
A group of English-speaking settlers travel to the Earth-like exoplanet of Rataan, which is 5 light years away. They board the generation ship Genesis that will reach Rataan in 200 years (0.25% of ...
I want to create a harmless snake that can spit like a spitting cobra as a defense while kills its prey by constriction. Its venom is considered harmless, but when goes to the eyes it causes tempo...
I'm thinking about an alien race that evolved from large terrestrial crustaceans and has developed a somewhat large brain. Like crabs on earth, these creatures have pinchers wich they use for self ...
I want to write a SF story where humans discover that a species of ET has caramel instead of blood and I need some biological information in order to develop it in a realistic way. For my story, i...
Antimatter gets used a lot in SciFi due to it's mind-bending energy density. If you can store it in a form that requires no power and is at least mildly idiot-proof then you've just solved half of ...
Double or binary planets are a really cool science fiction idea. A second Earth hanging ominously in the sky. Co-orbital or trojan planets are also interesting in that you have them on more or less...
Is there a feasible setup where the Sun has expanded enough to make the Earth uninhabitable, but some of the other rocky bodies in our solar system (past Earth) become more reasonable colonisation ...
The characters in my world use oxygen spheres like the top answer to this post (a leather balloon filled with air) to safely traverse land filled with smoke. How would you know when you are runnin...
We've found a habitable planet orbiting a red dwarf star some light years away and conditions are Earth-like enough that a colonization project was initiated. Before any humans landed on the planet...
I am working on a world where an event, like a celebration, occurs during every lunar eclipse. I would like to have lunar eclipses occurring more frequently--maybe even once a month--in order for...
From what I understand, Mount Everest grows about 2.4 inches per year. I am trying to create an area of land that grows very often, often around 1 inch per day. As I'm not very good with plate tect...
My world is a satellite of a gas giant. It has an atmosphere and is mostly covered by water (the percentage of water to its surface is somewhere in the high 80s-low 90s). Its rotation period is 28 ...
In the universe of my story, the Earth is ridden with metahumans with uncanny powers that do all sorts of different things. Of course, to do all this, they would require a tremendous amount of ener...
Given a world where a human-like brain is synthetizable, I wonder: A human-like artificial brain would most likely crave sensorial overwhelm. Pleasure to humans is something deeply associated with...
I am creating an RPG and I created a continent in which it is set on. I want to make sure that the climate types in it are realistic as well as the continent. This island is called Lartess. Lar...
I'm basically designing a quadrupedal digitigrade alien, which has evolved from a predominantly arboreal animal into a predator with more cursorial adaptations, capable of running fast, but still b...
Ningens are an old internet legend/creepypasta. Supposedly living in the polar regions of the globe, these creatures are described as having white-skin, a roughly humanoid structure with clear hea...
I'm writing a steampunk/weird west story set in 1867 and I want to incorporate some form of armored battle "walkers" (aka mechs). Looking for ideas for powertrains that could conceivably run such a...
Well. This is for a hard sci-fi fiction. The main protagonist, an Action Girl, has just met her sidekick: an humanoid Iguana (it makes sense and it is explained why Iguana-people people exist (has...
Many know that the Lantern Corps of DC Comics are capable of constructing objects of any shape or size out of hard light using their power ring fueled by their emotions. However, I'm wondering what...
My non-magic fantasy world has a species of hominid that lives in a huge and wide sierra of mountains. If they had split off from the (now dominant) human species a couple million years ago, (say a...
Based on the planet from this question. The main thing that distinguishes this planet from, say, Europa, is the handwavium light-source, which I must assume is wrapped in a perpetual explosion wrap...
