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What would be a valid reason for human blood/sweat/body fluids being toxic/harmful/caustic to an alien species' skin? What would the aliens' organic biochemistry be like and what would their DNA b...
I'm working on this map right now. Is this map realistic/believable? The continent would be about 5 million km² and lies in the temperate climate zone. (I intended it to be smaller than Australia;...
For my world I was thinking of there being a domesticated creature that is able to swallow humans whole and keep them in a second stomach which acts as a prison. I figured it would need to be tall ...
Connected too this question: Possible propellants more potent then gunpowder (16th-17th century) The Sanguine King wishes to build a Grand Bombard unlike any other. For this purpose he needs his f...
So recently I got slated for missing some glaring obvious flaws in my story on here, which I really do appreciate. I'm approaching the question from a different angle though, in two parts. What w...
I have a scenario which I am too poorly knowledgeable to address, I'm hoping for some expert input. I'm currently writing a novel, in which a large section of Russia/EU continents were blown up i...
Assuming a sci-fi style nebula, like the thick clouds seen in Star Trek, extending several light years and hosting star systems inside, one of which gave rise to intelligent life up to current huma...
So I want to have an alien creature on a planet with a halogen atmosphere. It will have to be at a temperature where the hydrogen halide is liquid or solid. This hydrogen halide I would have as th...
Europa's surface is marred with huge, curved cracks, called lineae, which may - depending on the thickness of its icy crust - expose the subsurface ocean to sunlight. Pictures like the one above...
I have read unlimited news in which a person has knowingly laced the food items of a person with something to make him mad to fulfill an ill purpose like succession of property, frustration due to ...
In a fantasy world I'm developing the kingdom of Andalus is seeking a more potent propellant for a grand bombard planned by the sanguine king. The size and composition of the bombard is saved for ...
Explanations for fire setting are easier to come by than explanations for fire resistance. Being able to set fires with nothing more than their hands, my 'fire-setters' need protection from the fla...
Premise: Earth has a magical cataclysm that pulls up new mountains, pushes down parts of landmasses, and generally reshapes Europe enough to make it unrecognizable (to the average person looking at...
I'm building a setting in a fictional Latin American country which is under military rule. The junta starts a breeding program in the late 40's with help from unscrupulous escaped Nazi scientists....
In micro-gravity and zero G, people's muscles deteriorate. If you sent a set of already very physically fit soldiers to train/live on a high gravity planet, would they perform better than other sol...
I am wanting my 32km x ~7.5km buried space habitat to be hit with a cataclysmic disaster which changes things from everyday life to a survival lifestyle. I would like the station to be damaged to ...
I'm designing an alien tree species that produces small purple fruits at the edge of its braches. Now a few seconds after one of these fruits falls from the tree it makes a small explosion so that ...
I'm interested in what kind of events / processes would it take to make Titan's atmosphere more or less transparent. The year is around 2150. The technology has progressed, sure, but it's nowhere ...
I've read the creation of dams in Earth can change the speed of rotation of the planet because they reallocate the mass over the planet. Let's suppose humans find a valuable mineral in the Moon an...
A saiyan is a species that is biologically similiar to humans, except in one particular way. Every time they come back from the brink of death, their strength and speed increases. They also become ...
Here's what I've come up with: The star: A main sequence star, roughly a sol analogue Younger than Sol (say 3-3.5 billion years old) roughly the same starting mass as Sol, but has had less tim...
I'm working on building a post nuclear war society in a nuclear winter where northern countries have risen to dominance through a combination of being non-primary targets in the nuclear war and hav...
I don't know the science involved, so I'm hoping someone else does. But is it more probable a giant creature of that size and capability would be more likely to exist if it were, say, a silicon-ba...
I ran across this article today about how moons might have moons. In Daniel Keys Moran's universe, an Earth-sized planet named November orbits a gas giant named Prometheus. November is inhabited,...
There is a big, very big planet that is travelling fast, very fast. It's a rogue planet (not attached to a star system). It's going to pass close, very close to the earth. The earth is probably ...
